HECO-FIX-plus HECO-TOPIX European Technical Assessment ETA-11/0284

Transcription

1 HECO-FIX-plus HECO-TOPIX European Technical Assessment ETA-11/0284 HECO-FIX-plus, HECO-TOPIX, HECO-TOPIX -T an HECO-TOPIX -CC screws for use in timber constructions

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3 European Technical Assessment ETA-11/0284 of 25 August Original version in German language General Part Technical Assessment Boy issuing the European Technical Assessment: Trae name of the construction prouct Prouct family to which the construction prouct belongs Manufacturer Manufacturing plant This European Technical Assessment contains This European Technical Assessment is issue in accorance with Regulation (EU) No 305/2011, on the basis of Deutsches Institut für Bautechni HECO-FIX-plus, HECO-TOPIX, HECO-TOPIX-T an HECO-TOPIX-CC screws Screws for use in timber constructions HECO-Schrauben GmbH & Co. KG Dr.-Kurt-Steim-Straße Schramberg DEUTSCHLAND HECO-Schrauben GmbH & Co. KG Dr. Kurt-Steim-Straße Schramberg S.C. HECO Schrauben S.R.L Str. Laminoristilor Nr. 159 RO Campia Turzii 65 pages incluing 6 annexes which form an integral part of this assessment European Assessment Document (EAD) This version replaces ETA-11/0284 issue on 8 June 2016 Z /16

4 European Technical Assessment ETA-11/0284 Page 2 of August 2016 The European Technical Assessment is issue by the Technical Assessment Boy in its official language. Translations of this European Technical Assessment in other languages shall fully correspon to the original issue ocument an shall be ientifie as such. Communication of this European Technical Assessment, incluing transmission by electronic means, shall be in full. However, partial reprouction may only be mae with the written consent of the issuing Technical Assessment Boy. Any partial reprouction shall be ientifie as such. This European Technical Assessment may be withrawn by the issuing Technical Assessment Boy, in particular pursuant to information by the Commission in accorance with Article 25(3) of Regulation (EU) No 305/2011. Z /16

5 European Technical Assessment ETA-11/0284 Page 3 of August 2016 Specific Part 1 Technical escription of the prouct HECO-FIX-plus, HECO-TOPIX an HECO-TOPIX-T screws are screws mae from special carbon or stainless steel. HECO-TOPIX-CC screws are screws mae from special carbon steel. Screws mae from carbon steel are harene. They have a corrosion protection accoring to Annex A.2.6. The outer threa iameter is not less than 3.5 mm an not greater than 10.0 mm. The overall length of the screws is ranging from 20 mm to 500 mm. Further imensions are shown in Annex 6. The washers are mae from carbon or stainless steel. The imensions of the washers are given in Annex 6. 2 Specification of the intene use in accorance with the applicable European Assessment Document The performances given in Section 3 are only vali if the HECO screws are use in compliance with the specifications an conitions given in Annex 1 to 5. Durability is only ensure if the specifications of intene use accoring to Annex 1 to 5 are taen into account. The verifications an assessment methos on which this European Technical Assessment is base lea to the assumption of a woring life of the HECO screws of at least 50 years. The inications given on the woring life cannot be interprete as a guarantee given by the proucer, but are to be regare only as a means for choosing the right proucts in relation to the expecte economically reasonable woring life of the wors. 3 Performance of the prouct an references to the methos use for its assessment 3.1 Mechanical resistance an stability (BWR 1) Essential characteristic Performance Dimensions See Annex 6 Characteristic yiel moment See Annex 2 Characteristic withrawal parameter See Annex 2 Characteristic hea pull-through parameter See Annex 2 Characteristic tensile strength See Annex 2 Characteristic yiel strength See Annexes 2 an 3 Characteristic torsional strength See Annex 2 Insertion moment See Annex 2 Spacing, en an ege istances of the screws an minimum thicness of the woo base material See Annex 2 Slip moulus for mainly axially loae screws See Annex 2 Z /16

6 European Technical Assessment ETA-11/0284 Page 4 of August Safety in case of fire (BWR 2) Essential characteristic Reaction to fire Performance The screws are mae of steel classifie as Euroclass A1 in accorance with EC ecision 96/603/EC, as amene by EC ecision 2000/605/EC. 3.3 Hygiene, health an the environment (BWR 3) Essential characteristic Content, emission an/or release of angerous substances Performance The prouct oes not contain camium. 3.4 Safety an accessibility in use (BWR 4) Same as BWR Protection against noise (BWR 5) Not applicable 3.6 Energy economy an heat retention (BWR 6) Not applicable 3.7 Sustainable use of natural resources (BWR 7) For the sustainable use of natural resources no performance was investigate for this prouct. 4 Assessment an verification of constancy of performance (AVCP) system applie, with reference to its legal base In accorance with EAD No , the applicable European legal act is: 97/176/EC. The system to be applie is: 3 5 Technical etails necessary for the implementation of the AVCP system, as provie for in the applicable EAD Technical etails necessary for the implementation of the AVCP system are lai own in the control plan eposite with Deutsches Institut für Bautechni. Issue in Berlin on 25 August 2016 by Deutsches Institut für Bautechni Uwe Bener Hea of Department beglaubigt: Dewitt Z /16

7 Page 5 of European Technical Assessment Annex 1 Specifications of intene use A.1.1 Use of the HECO-FIX-plus, HECO-TOPIX, HECO-TOPIX-CC an HECO-TOPIX-T screws only for: Static an quasi-static loas A.1.2 Base materials The screws are use for connections in loa bearing timber structures between woo-base members or between those members an steel members: Soli timber (softwoo) accoring to EN , Soli timber of ash, beech or oa harwoo accoring to EN , Glue laminate timber (softwoo) accoring to EN , Glue laminate timber mae of ash, beech or oa harwoo accoring to European Technical Approvals/ Assessments or national provisions that apply at the installation site, Laminate veneer lumber LVL of softwoo accoring to EN , arrangement of the screws only at an angle of to the plane of the veneers, where is the angle between screw axis an the plane of the veneer, Glue soli timber (softwoo) accoring to EN or national provisions that apply at the installation site, Cross-laminate timber (softwoo) accoring to European Technical Approvals/ Assessments or national provisions that apply at the installation site, LVL flanges of I-beams accoring to European Technical Approvals/ Assessments on the basis of ETAG 011. The screws may be use for connecting the following woo-base panels to the timber members mentione above: Plywoo accoring to EN an EN , Oriente Stran Boar, OSB accoring to EN an EN 13986, Particleboar accoring to EN an EN 13986, Fibreboars accoring to EN , EN an EN 13986, Cement-bone particle boars accoring to EN an EN 13986, Soli-woo panels accoring to EN an EN Woo-base panels shall only be arrange on the sie of the screw hea. HECO screws with an outer threa iameter of at least 6 mm may be use for the fixing of thermal insulation material on top of rafters or on woo-base members in vertical façaes. HECO-TOPIX-CC screws an fully threae HECO-TOPIX screws may be use for compression an tension reinforcing of timber structures perpenicular to the grain. 1 EN :2005+A1:2011 Timber structures Strength grae structural timber with rectangular cross section Part 1: General requirements 2 EN 14080:2013 Timber structures - Glue laminate timber an glue soli timber - Requirements 3 EN 14374:2004 Timber structures - Structural laminate veneer lumber - Requirements 4 EN 636:2012+A1:2015 Plywoo - Specifications 5 EN 13986:2004+A1:2015 Woo-base panels for use in construction - Characteristics, evaluation of conformity an maring 6 EN 300:2006 Oriente stran boars (OSB) Definition, classification an specifications 7 EN 312:2010 Particleboars - Specifications 8 EN 622-2:2004 Fibreboars Specifications Part 2: Requirements for harboars 9 EN 622-3:2004 Fibreboars - Specifications - Part 3: Requirements for meium boars 10 EN 634-2:2007 Cement-bone particleboars Specifications Part 2: Requirements for OPC bone particleboars for use in ry, humi an external conitions 11 EN 13353:2008+A1:2011 Soli woo panels (SWP) Requirements Specifications of intene use Annex 1 Z /16

8 Page 6 of European Technical Assessment A.1.3 Use Conitions (environmental conitions) The corrosion protection of the HECO screws is specifie in Annex A.2.6. With regars to the use an the environmental conitions, the national provisions of the place of installation apply. A.1.4 Installation provisions EN in conjunction with the respective national annex applies for the installation. The screws are either riven into the woo-base member mae of softwoo without pre-rilling or in pre-rille holes with a iameter accoring to Table A.1. The screws are riven into woo-base members mae of ash, beech or oa with a maximum mean ensity of 750 g/m³ in pre-rille holes with a iameter accoring to Table A.1. Table A.1 Diameter of the pre-rille holes in softwoo an in ash, beech or oa harwoo Outer threa iameter [mm] Diameter of the pre-rille hole with a tolerance of ± 0.1 mm [mm] Softwoo Ash, beech or oa harwoo 3,5 2,0 2,5 4,0 2,5 3,0 4,5 3,0 3,0 5,0 3,0 3,5 6,0 4,0 4,0 8,0 5,0 6,0 10,0 6,0 7,0 The screw holes in steel members shall be pre-rille with an aequate iameter greater than the outer threa iameter. A minimum of two screws shall be use for connections in loa bearing timber structures. This oes not apply for special situations specifie in National Annexes to EN Only one screw may be use in structural connections when the minimum penetration length of the screw is 20, the screw is only axially loae an the angle between screw axis an grain irection is 15. The loa-bearing capacity of the screw shall be reuce by 50 %. If the screw is use as tensile or compressive reinforcement of timber structures perpenicular to the grain no reuction of the loa-bearing capacity of the screw is require. If screws with an outer threa iameter 8 mm are riven into the woo-base member without pre-rilling, the structural soli or glue laminate timber, laminate veneer lumber an glue soli timber members shall be from spruce, pine or fir. In the case of fastening battens on thermal insulation material on top of rafters the screws shall be riven in the rafter through the battens an the thermal insulation material without pre-rilling in one sequence. Countersun hea screws may be use with washers accoring to Annex 6. After inserting the screw the washers shall touch the surface of the woo-base member completely. Screws mae from carbon steel shall be use with washers mae from carbon steel an screws mae from stainless steel shall be use with washers mae from stainless steel. By fastening screws in woo-base members the hea of the screws shall be flush with the surface of the woobase member. For pan hea, raise countersun hea, flange hea an hexagonal hea the hea part remains unconsiere. 12 EN :2004+A1:2008+A2:2014 Eurocoe 5: Design of timber structures Part 1-1: General - Common rules an rules for builings Installation provisions Annex 1 Z /16

9 Page 7 of European Technical Assessment Annex 2 Characteristic loa-bearing capacity values of the HECO screws Table A.2.1 Characteristic loa-bearing capacities of HECO-FIX-plus an HECO-TOPIX screws Outer threa iameter [mm] Characteristic yiel Carbon steel moment M y, [Nm] Stainless steel Characteristic Carbon steel tensile strength f tens, [N] Characteristic torsional strength f tor, [Nm] Stainless steel Carbon steel Stainless steel Table A.2.2 Characteristic loa-bearing capacities of HECO-TOPIX-CC an HECO-TOPIX-T screws Outer threa iameter [mm] HECO-TOPIX-CC HECO-TOPIX-T 6.0/ / Characteristic yiel moment M y, [Nm] Characteristic tensile strength f tens, [N] Characteristic torsional strength f tor, [Nm] Carbon steel harene Stainless steel Carbon steel harene Stainless steel Carbon steel harene Stainless steel A.2.1 General The minimum penetration length of the threae part of the screw l ef shall be l ef = where 4 sin min 20 angle between screw axis an grain irection outer threa iameter of the screw. Characteristic values loa-bearing of the loa-carrying capacity values capacities Annex 2 Z /16

10 Page 8 of European Technical Assessment The outer threa iameter of screws inserte in cross-laminate timber shall be at least 6 mm. The inner threa iameter 1 of the screws shall be greater than the maximal with of the gaps in the layer. A.2.2 Laterally loae screws A General The outer threa iameter shall be use as effective iameter of the screw accoring to EN The embeing strength for the screws in woo-base members or in woo-base panels shall be taen from EN or from national provisions that apply at the installation site unless otherwise specifie in the following. A Soli timber, glue laminate timber, glue soli timber an laminate veneer lumber The embeing strength for screws in non-pre-rille holes in softwoo arrange at an angle between screw axis an grain irection of 0 90 is: fh, (2.1) 2.5cos ² sin ² The embeing strength for screws in pre-rille holes in softwoo or in ash, beech or oa harwoo arrange at an angle between screw axis an grain irection of 0 90 is: ( ) fh, (2.2) 2.5cos ² sin ² where Characteristic ensity of the woo-base member, for LVL 500 g/m³, for ash, beech an oa 590 g/m³ Outer threa iameter of the screw [mm] Angle between screw axis an grain irection, 0 α 90. A Cross laminate timber The embeing strength for screws arrange in the ege surfaces parallel to the plane of cross laminate timber may be assume accoring to equation (2.3) inepenent of the angle between screw axis an grain irection, 0 90 : fh, 0,5 20 in N/mm² (2.3) unless otherwise specifie in the technical specification of the cross laminate timber. Where is the outer threa iameter of the screws in mm. Equation (2.3) is only vali for softwoo layers. The provisions in the European Technical Approval/ Assessment or in national provisions of the cross laminate timber apply. The embeing strength for screws in the wie face of cross laminate timber shoul be assume as for soli timber base on the characteristic ensity of the outer layer. Where applicable, the angle between force an grain irection of the outer layer shall be taen into account. The irection of the lateral force shall be perpenicular to the screw axis an parallel to the wie face of the cross laminate timber. Characteristic values loa-bearing of the loa-carrying capacity values capacities Annex 2 Z /16

11 Page 9 of European Technical Assessment A.2.3 Axially loae screws The axial slip moulus K ser of the threae part of a screw for the serviceability limit state per sie shall be taen inepenent of angle α to the grain as: K ser = 780 0,2 l [N/mm] for timber members mae from softwoo (2.4) 0,4 ef K ser = 870 0,2 0,4 l ef [N/mm] for timber members mae from harwoo (ash, beech, oa) (2.5) where outer threa iameter of the screw [mm] penetration length of the of the threae part of the screw in the woo-base member [mm]. l ef A Axial withrawal capacity The characteristic withrawal capacity in soli timber (softwoo or harwoo species ash, beech an oa), glue laminate timber (softwoo or harwoo species ash, beech an oa), cross laminate timber or laminate veneer lumber members at an angle of 0 90 to the grain shall be calculate as: 0.8 Fax,,R nef ax fax, ef 350 where F ax,,r Characteristic withrawal capacity of a screw group at an angle to the grain [N] n ef Effective number of screws accoring to EN :2008, clause (8) For incline screws with an angle between shear plane an screw axis 30 α 60 : n ef = max n n ;0.9 n ax For incline screws as fasteners in mechanically jointe beams or columns or for the fixing of thermal insulation material, n ef = n. Number of screws acting together in a connection. If crosse pairs of screws are use in timber-to-timber connections, n is the number of crosse pairs of screws. Factor, taing into account the angle between screw axis an grain irection ax = 1.0 for 45 α 90 ax = 0.8 for I-beams with LVL flanges for 45 α ax 0.3 for 15 α < 45 (not vali for the flanges of I-beams with LVL flanges) (2.8) 45 Equation (2.8) may be use for angles between screw axis an grain irection 0 α < 15 if the following requirements are fulfille: 1. The screws are inserte in soli timber, glue laminate timber, glue soli timber or laminate veneer lumber mae from softwoo. 2. The penetration length of the threae part of the screws is l ef,req = 4 sin min At least four screws are use in a connection. (2.6) (2.7) Characteristic values of the loa-carrying capacities Annex 2 Z /16

12 Page 10 of European Technical Assessment f ax, Characteristic withrawal parameter at an angle = 90 base on a characteristic ensity of the woobase member of 350 g/m³ f ax, = 13.7 N/mm² for HECO-FIX-plus an HECO-TOPIX screws with 3.5 mm 4.5 mm f ax, = 11.8 N/mm² for HECO-FIX-plus an HECO-TOPIX screws with 5.0 mm 10.0 mm f ax, = 10.5 N/mm² for HECO-TOPIX-T screws f ax, = 12.5 N/mm² for HECO-TOPIX-CC screws. The characteristic withrawal parameter is also vali for softwoo layers of cross-laminate timber. Characteristic ensity of the woo-base member, for LVL 500 g/m³, for ash, beech an oa 590 g/m³ For screws penetrating more than one layer of cross laminate timber the ifferent layers may be taen into account proportionally. In the lateral surfaces of the cross laminate timber the screws shall be fully inserte in one layer of cross-laminate timber. A Hea pull-through capacity The characteristic hea pull-through capacity in soli timber (softwoo or harwoo species ash, beech an oa), glue laminate timber (softwoo or harwoo species ash, beech an oa), cross laminate timber, laminate veneer lumber members an woo-base panels shall be calculate as: 0,8 2 Fax,,R nef fhea, h 350 [N] (2.9) where: F ax,,rk Characteristic hea pull-through capacity of the connection at an angle > 30 to the grain [N] n ef Effective number of screws accoring to EN :2008, clause (8) For incline screws with an angle between shear plane an screw axis 30 α 60 : n ef = max n n ;0.9 For incline screws as fasteners in mechanically jointe beams or columns or for the fixing of thermal insulation material, n ef = n. n Number of screws acting together in a connection. If crosse pairs of screws are use in timber-to-timber connections, n is the number of crosse pairs of screws. f hea, Characteristic hea pull-through parameter of the screw [N/mm²] h Diameter of the screw hea or the washer [mm]. Outer iameter of heas or washers h > 32 mm shall only be consiere with a nominal iameter of 32 mm. Characteristic ensity of the woo-base member or of the woo-base panel [g/m³], for woo-base panels 380 g/m³, for LVL 500 g/m³, for ash, beech an oa 590 g/m³ The characteristic value of the hea pull-through parameter for HECO screws for a characteristic ensity of 350 g/m³ of the softwoo-base member an for woo-base panel lie - Plywoo accoring to EN 636 an EN Oriente Stran Boar, OSB accoring to EN 300 an EN Particleboar accoring to EN 312 an EN Fibreboars accoring to EN 622-2, EN an EN Cement-bone particle boars accoring to EN an EN 13986, - Soli-woo panels accoring to EN an EN Characteristic values loa-bearing of the loa-carrying capacity values capacities Annex 2 Z /16

13 Page 11 of European Technical Assessment with a thicness of more than 20 mm is f hea, = 9.4 N/mm² for 23 mm < h 35 mm f hea, = 14.0 N/mm² for h 23 mm. Characteristic hea pull-through parameter for HECO screws in connections with ash, beech an oa harwoo timber with a thicness of more than 20 mm base on a characteristic ensity of the timber of 350 g/m³ is: f hea, = 15 N/mm² for h > 20 mm an for washers; f hea, = 20 N/mm² for h 20 mm. For woo base panels with a thicness 12 mm t 20 mm the characteristic value of the hea pull-through parameter for HECO screws is: f hea, = 8 N/mm² For woo base panels with a thicness of less than 12 mm the characteristic hea pull-through capacity for HECO screws shall be base on a characteristic value of the hea pull-through parameter of 8 N/mm², an limite to 400 N complying with the minimum thicness of the woo base panels of 1.2, with as outer threa iameter an the values in Table A.2.3. Table A.2.3 Minimum thicness of woo base panels Woo base panel Minimum thicness [mm] Plywoo 6 Fibreboars (harboars an meium boars) 6 Oriente Stran Boars, OSB 8 Particleboars 8 Cement-bone particle boar 8 Soli woo Panels 12 For HECO-TOPIX-T screws an fully threae HECO-TOPIX screws the withrawal capacity of the threa in the woo-base member with the screw hea may be taen into account instea of the hea pull-through capacity: F ax,,r = max f hea, ax 0,8 2 h 350 fax,90, lef, 350 0,8 (2.10) For HECO-TOPIX-CC screws the withrawal capacity of the threa in the woo-base member with the screw hea shall be taen into account accoring to equation (2.11). F ax,,r = ax f ax,90, l ef, 350 0,8 (2.11) where h ax l ef, iameter of the screw hea [mm], characteristic ensity of the woo-base member with the screw hea [g/m³], for woo-base panels 380 g/m³, for LVL 500 g/m³, for harwoo 590 g/m³ factor accoring to clause A penetration length of the threae part of the screw in the woo-base member with the screw hea [mm], l ef, 4 In steel-to-timber connections the hea pull-through capacity is not governing. Characteristic values of the loa-carrying capacities Annex 2 Z /16

14 Page 12 of European Technical Assessment A Compressive capacity of HECO-TOPIX-CC screws an fully threae HECO-TOPIX screws The esign axial capacity F ax,r of HECO-TOPIX-CC screws an fully threae HECO-TOPIX screws embee in soli timber, glue soli timber or glue laminate timber mae from softwoo with an angle between screw axis an grain irection of 30 α 90 is the minimum of the axial resistance against pushing-in an the bucling resistance of the screw. F ax,r = min f ; N (2.12) f ax, ax, ef c pl, esign value of the axial withrawal capacity of the threae part of the screw [N/mm²] outer threa iameter of the screw [mm] l ef penetration length of the threae part of the screw in the timber member [mm] c = 1 for 0, 2 (2.13) 1 c = 2 2 for 0, 2 (2.14) 2 = 0,5 0,49 0, 1 2 (2.15) an a relative slenerness ratio N N pl, i, where: N pl, characteristic plastic normal force relate to the net cross-section of the inner threa iameter: : f y, 1 Npl, Npl, M1 M1 N pl, = 2 1 fy, 4 characteristic yiel strength, f y, = 900 N/mm² for HECO-TOPIX-CC screws an fully threae HECO-TOPIX screws inner threa iameter of the screw [mm] partial factor accoring to EN in conjunction with the particular national annex (2.16) (2.17) (2.18) characteristic ieal elastic bucling loa: N i, = ch ES ls [N] (2.19) elastic founation of the screw: [N/mm²] (2.20) 180 c h = characteristic ensity of the woo-base member [g/m³], for LVL 500 g/m³ angle between screw axis an grain irection, 30 α 90 moulus of elasticity: E s = N/mm² secon moment of area: 4 1 I s [mm 4 ] (2.21) 64 Characteristic values of the loa-carrying capacities Annex 2 Z /16

15 Page 13 of European Technical Assessment A.2.4 Spacing, en an ege istances of the screws an minimum thicness of the woo base material HECO-FIX-plus an HECO-TOPIX screws Minimum thicness for structural woo-base members mae from soli timber, glue laminate timber, glue soli timber, laminate veneer lumber an cross laminate timber is t = 24 mm for screws with 6 mm, t = 30 mm for screws with = 8 mm an t = 40 mm for screws with = 10 mm. HECO-TOPIX-CC an HECO-TOPIX-T screws Minimum thicness for structural woo-base members mae from soli timber, glue laminate timber, glue soli timber, laminate veneer lumber an cross laminate timber is t = 30 mm for screws with 8 mm an t = 40 mm for screws with = 10 mm. In the case the spacing parallel to the grain an the en istance is at least 25 the minimum thicness for structural members is t = 24 mm for screws with = 6 mm. A Laterally an/or axially loae screws Screws in pre-rille holes For HECO screws in pre-rille holes the minimum spacings, en an ege istances are given in EN :2004+A1: 2008, clause an Table 8.2 as for nails in pre-rille holes. Here, the outer threa iameter shall be consiere. Screws in non pre-rille holes For HECO screws minimum spacing an istances are given in EN :2004+A1:2008, clause an Table 8.2 as for nails in non-prerille holes. Here, the outer threa iameter shall be consiere. For Douglas fir members minimum spacing an istances parallel to the grain shall be increase by 50%. Minimum istances from loae or unloae ens shall be at least 15 for screws with outer threa iameter > 8 mm an timber thicness t < 5. Minimum istances from the unloae ege perpenicular to the grain may be reuce to 3 also for timber thicness t < 5, if the spacing parallel to the grain an the en istance is at least 25. A Only axially loae screws For HECO screws loae only axially, the following minimum spacings, en an ege istances apply alternatively to paragraph A for soli timber, glue laminate timber an similar glue proucts: Spacing a 1 in a plane parallel to grain: a 1 = 5 Spacing a 2 perpenicular to a plane parallel to grain: a 2 = 2.5 En istance of the centre of gravity of the threae part in the timber member: a 1,CG = 5 Ege istance of the centre of gravity of the threae part in the timber member: a 2,CG = 4 Prouct of spacing a 1 an a 2 : a 1 a 2 = 25 2 For screws in non pre-rille holes a minimum timber thicness of 12 an a minimum with of 8 or 60 mm, whichever is the greater, are require. For a crosse screw couple in soli timber, glue laminate timber an similar glue proucts or in laminate veneer lumber the minimum spacing between the crossing screws is 1.5. Are the spacing, en an ege istances less than the istances an thicnesses given in EN the verification of resistance accoring to EN :2004 +AC: A1:2008, clause (1) the failure along the circumference of a group of screws has to be consiere also for connections without steel plates. Minimum istances from the unloae ege perpenicular to the grain of I-joist flanges mae of LVL may be reuce to 2 for 8 mm an timber thicness t 39 mm, if the spacing parallel to the grain an the en istance are at least 10. The screws shall be centrically inserte in the I-joist flanges. Characteristic Minimum spacings loa-bearing an istances capacity values Annex 2 Z /16

16 Page 14 of European Technical Assessment A Cross laminate timber The minimum requirements for spacing, en an ege istances of screws in the plane or ege surfaces of cross laminate timber are summarise in Table A.2.4. The efinition of spacing, en an ege istance is shown in Figure 2.1 an Figure 2.2. The minimum spacing, en an ege istances in the ege surfaces are inepenent of the angle between screw axis an grain irection. They may be use base on the following conitions: Minimum thicness of cross laminate timber: 10 Minimum penetration epth in the ege surface: 10 a 1 a 2 a 1 a 2 a2 a 3,t a 3,c a 4,c F F a 4,t F Figure 2.1 Definition of spacing, en an ege istances in the plane surface Table A.2.4 Minimum spacing, en an ege istances of screws in the plane or ege surfaces of cross laminate timber a 1 a 3,t a 3,c a 2 a 4,t a 4,c Plane surface (see Figure 2.1) ,5 6 2,5 Ege surface (see Figure 2.2) Minimum spacings an istances Annex 2 Z /16

17 Page 15 of European Technical Assessment a 2,c a 2,c a 2,c a 2,t a 1,t a 1,c a 1 a 1 a 1,c F a 1,c F F t i t i t CLT t CLT Figure 2.2 Definition of spacing, en an ege istances in the ege surface A.2.5 Insertion moment The ratio between the characteristic torsional strength f tor, an the mean value of insertion moment R tor,mean fulfills the requirement for all screws. A.2.6 Durability against corrosion Screws an washers mae from carbon steel may have the coatings accoring to Table A.2.5 Table A.2.5 Coatings of the screws Coating Thicness of the coating [m] electrogalvanise blue chromate yellow chromate blac chromate 4-10 olive chromate zinc-nicel coating, galvanic clae, chromate 8-12 zinc flae basecoat Steel no an are use for screws mae from stainless steel. Washers are mae from steel no or Contact corrosion shall be avoie. Insertion moment an urability against corrosion Annex 2 Z /16

18 Page 16 of European Technical Assessment Use examples of HECO-TOPIX-T, HECO-TOPIX-CC screws an fully threae HECO-TOPIX screws S Centroi of the part of the screw in the timber Use examples Annex 2 Z /16

19 Page 17 of European Technical Assessment S Centroi of the part of the screw in the timber Example of use of the screws Annex 2 Z /16

20 Page 18 of European Technical Assessment ANNEX 3 Compression reinforcement perpenicular to the grain A.3.1 General Only HECO-TOPIX-CC screws an fully threae HECO-TOPIX screws shall be use for compression reinforcement perpenicular to the grain. The provisions are vali for reinforcing timber members mae from soli timber, glue soli timber an glue laminate timber mae from softwoo. The compression force shall evenly be istribute to the screws use as compression reinforcement. The screws are riven into the timber member perpenicular to the contact surface uner an angle between the screw axis an the grain irection of 45 to 90. The screw heas must be flush with the timber surface. A.3.2 Design For the esign of reinforce contact areas the following conitions must be met inepenently of the angle between the screw axis an the grain irection. The esign resistance of a reinforce contact area is: c,90 B ef,1 fc,90, n min Rax,; c Npl, R 90, min B ef,2 f (3.1) c,90, where: c,90 Parameter accoring to EN :2004+A1: 2008, B Bearing with [mm] ef,1 Effective contact length accoring to EN :2004+A1: 2008, [mm] f c,90, Design compressive strength perpenicular to the grain [N/mm²] n Number of reinforcing screws, n = n 0 n 90 n 0 Number of reinforcing screws arrange in a row parallel to the grain n 90 Number of reinforcing screws arrange in a row perpenicular to the grain R f [N] (3.2) ax, f ax, c N pl, ef,2 ef a 1 a 1,CG ax, ef esign value of the axial withrawal capacity of the threae part of the screw [N/mm²] outer threa iameter of the screw [mm] accoring to annex 2, chapter "compressive capacity" accoring to annex 2, chapter "compressive capacity" [N] Effective contact length in the plane of the screw tips (see Figure 3.1) [mm] ef,2 = { ef + (n 0-1) a 1 + min( ef ; a 1,C )} for en supports (see Figure 3.1 left) ef,2 = {2 ef + (n 0-1) a 1 } for intermeiate supports (see Figure 3.1 right) Penetration length of the threae part of the screw in the timber member [mm] Spacing a 1 in a plane parallel to grain, see chapter A [mm] En istance of the centre of gravity of the threae part in the timber member, see chapter A [mm] Compression reinforcement perpenicular to the grain Annex 3 Z /16

21 Page 19 of European Technical Assessment = Fibre irection Figure 3.1: Reinforce en support (left) an reinforce intermeiate support (right) Compression reinforcement perpenicular to the grain Annex 3 Z /16

22 Page 20 of European Technical Assessment ANNEX 4 Tensile reinforcement perpenicular to grain A.4.1 General Only HECO-TOPIX-CC screws an fully threae HECO-TOPIX screws shall be use for tensile reinforcement perpenicular to the grain. The screws are riven into the timber member perpenicular to the contact surface uner an angle between the screw axis an the grain irection of 90. The provisions regaring tensile reinforcement perpenicular to the grain are vali for the following timber members: - soli timber mae of softwoo or of the harwoo species ash, beech or oa, - glue laminate timber mae of softwoo or of the harwoo species ash, beech or oa, - glue soli timber mae of softwoo, - laminate veneer lumber mae of softwoo. For the esign an construction of the tensile reinforcement of timber members perpenicular to the grain, the provisions at the place of installation shall apply. As examples connection forces at an angle to the grain an notche beam supports are given in the following. Note: For example, in Germany the provisions of stanar DIN EN /NA: , NCI NA.6.8 an amenments shall be taen into account. A minimum of two screws shall be use for tensile reinforcement perpenicular to the grain. Only one screw may be use when the minimum penetration epth of the screws below an above the potential crac is 20 where is the outer threa iameter of the screw. A.4.2 Design A Connection forces at an angle to the grain The axial capacity of a reinforcement of a timber member loae by a connection force perpenicular to the grain shall fulfil the following conition: F90, 1 Fax,R where F 90, esign value of the force component perpenicular to the grain, = a/h a see Figure 4.1 h = member epth F ax,r = min f ; F f ax, ef F t,r ax, ef t,r esign value of the axial withrawal capacity of the threae part of the screw outer threa iameter of the screw smaller value of the penetration epth below or above the potential crac esign value of the tensile resistance of the screw = f tens, (4.1) Outsie the connection only one screw each in longituinal irection of the beam shall be taen into account. Tensile reinforcement perpenicular to the grain Annex 4 Z /16

23 Page 21 of European Technical Assessment potential crac A a ar h1 h2 hi hn h lef,t lef,c a h A t t b F90 F90/2 F90/2 F90 Figure 4.1: Example for tensile reinforcement of a connection force perpenicular to the grain Tensile reinforcement perpenicular to the grain Annex 4 Z /16

24 Page 22 of European Technical Assessment A Notche beam supports The axial capacity of a reinforcement of a notche beam support shall fulfil the following conition: 1,3 V Fax,R where V esign value of the shear force = h e /h h = member epth F ax,r = min f ; F f ax, ax, ef t,r esign value of the axial withrawal capacity of the threae part of the screw outer threa iameter of the screw ef smaller value of the penetration epth below or above the potential crac F t,r esign value of the tensile resistance of the screws = f tens, Only one screw in longituinal irection of the beam shall be taen into account. (4.2) potential crac A A he h he A A h-he b A h-he V V c Figure 4.2: Example for tensile reinforcement of a notche beam support c Tensile reinforcement perpenicular to the grain Annex 4 Z /16

25 Page 23 of European Technical Assessment ANNEX 5 Fastening of thermal insulation material on top of rafters A.5.1 General HECO screws with an outer threa iameter of at least 6 mm may be use for the fixing of thermal insulation material on top of rafters or on woo-base members in vertical façaes. In the following, the meaning of the wor rafter inclues woo-base members with inclinations between 0 an 90. The thicness of the thermal insulation material may be up to 400 mm. The thermal insulation material shall be applicable as insulation on top of rafters or on façaes accoring to national provisions that apply at the installation site. The battens have to be from soli timber (softwoo) accoring to EN 338/ EN The minimum thicness t an the minimum with b of the battens are given in table A.5.1: Table A.5.1 Minimum thicness an minimum with of the battens Outer threa iameter [mm] Minimum thicness t [mm] Minimum with b [mm] 6 an The minimum with of the rafters is 60 mm. A reuce ege istance of 2.5 of axially loae screws in rafters may be use uner the following conitions: Characteristic ensity of the rafter: 460 g/m³ Outer threa iameter of the screw: 6 mm 8 mm Depth h of the rafter parallel to screw axis: h 16 With b of the rafter perpenicular to screw axis: b 5 Unloae ege istance: a 4,c 2,5 Loae or unloae en istance: a 3,t/c 25 Spacing parallel to the grain: a 1 25 Friction forces shall not be consiere for the esign of the characteristic axial loa of the screws. The anchorage of win suction forces as well as the bening stresses of the battens shall be consiere for esign. Screws perpenicular to the grain of the rafter (angle = 90 ) may be arrange where require consiering the esign of the battens. A.5.2 A Parallel incline screws an thermal insulation material in compression Mechanical moel The system of rafter, thermal insulation material on top of rafter an battens parallel to the rafter may be consiere as a beam on elastic founation. The batten represents the beam, an the thermal insulation material on top of the rafter the elastic founation. The minimum compression stress of the thermal insulation material at 10 % eformation, measure accoring to EN , shall be (10 %) = 0,05 N/mm². The batten is loae perpenicular to the axis by point loas F b. Further point loas F s are from the shear loa of the roof ue to ea an snow loa, which are transferre from the screw heas into the battens. Only HECO-FIX-plus, HECO-TOPIX an HECO-TOPIX-T screws shall be use in this system. 13 EN 826:2013 Thermal insulating proucts for builing applications - Determination of compression behaviour Fastening of thermal insulation material on top of rafters Annex 5 Z /16

26 Page 24 of European Technical Assessment Instea of battens the following woo-base panels may be use to cover the thermal insulation material if they are suitable for that use: Plywoo accoring to EN 636 an EN 13986, Oriente Stran Boar, OSB accoring to EN 300 an EN 13986, Particleboar accoring to EN 312 an EN Fibreboars accoring to EN 622-2, EN an EN Only screws with countersun hea an raise countersun hea shall be use for fixing woo-base panels on rafters with thermal insulation material as interlayer. The minimum thicness of the woo-base panels shall be 22 mm. The wor batten inclues the meaning of woo-base panels in the following. Fastening of thermal insulation material on top of rafters Annex 5 Z /16

27 Page 25 of European Technical Assessment Figure A.5.1 Fastening of the thermal insulation material on top of rafters - structural system for parallel incline screws Fastening of thermal thermal insulation material material on top on top of rafters of rafters Annex 5 Z /16

28 Page 26 of European Technical Assessment Figure A.5.2 Point loas F b perpenicular to the battens Figure A.5.3 Point loas F s perpenicular to the battens, loa application in the area of the screw heas Fastening of thermal thermal insulation material material on top on top of rafters of rafters Annex 35 Z /16

29 Page 27 of European Technical Assessment A Design of the battens The characteristic values of the bening stresses are calculate as: (Fb, Fs, ) lchar M 4 where 4 EI l char =Characteristic length lchar 4 w ef K EI = Bening stiffness of the batten K = Coefficient of subgrae w ef = Effective with of the thermal insulation material F b, = Characteristic value of the point loas perpenicular to the battens F s, = Characteristic value of the point loas perpenicular to the battens, loa application in the area of the screw heas The coefficient of subgrae K may be calculate from the moulus of elasticity E HI an the thicness t HI of the thermal insulation material if the effective with w ef of the thermal insulation material uner compression is nown. Due to the loa extension in the thermal insulation material the effective with w ef is greater than the with of the batten or rafter, respectively. For further calculations, the effective with w ef of the thermal insulation material may be etermine accoring to: w w t / 2 (5.3) ef HI where w = Minimum from with of the batten or rafter, respectively t HI = Thicness of the thermal insulation material EHI K t HI The following conition shall be satisfie: m, M 1 f W fm, m, For the calculation of the section moulus W the net cross section shall be consiere. The characteristic value of the shear stresses shall be calculate accoring to: F F b, S, V 2 The following conition nee to be satisfie: 1.5 V 1 f A f v, v, For the calculation of the cross section area the net cross section shall be consiere. A Design of the thermal insulation material The characteristic value of the compressive stresses in the thermal insulation material shall be calculate accoring to: 1,5 F 2 l b, char F w s, The esign value of the compressive stress shall not be greater than 110 % of the compressive stress at 10 % eformation calculate accoring to EN 826. (5.1) (5.2) (5.4) (5.5) (5.6) (5.7) (5.8) Fastening of thermal thermal insulation material material on top on top of rafters of rafters Annex 35 Z /16

30 Page 28 of European Technical Assessment A Design of the screws The screws are loae preominantly axially. The characteristic value of the axial tension force in the screw may be calculate from the shear loas of the roof R s : RS, TS, (5.9) cos The loa-carrying capacity of axially loae screws is the minimum esign value of the axial withrawal capacity of the threae part of the screw, the hea pull-through capacity of the screw an the tensile capacity of the screw accoring to Annex 2. In orer to limit the eformation of the screw hea for thermal insulation material with thicness over 220 mm or with compressive stress (10%) below 0.12 N/mm², respectively, the axial withrawal capacity of the screws shall be reuce by the factors 1 an 2. In the case woo-base panels covers the thermal insulation material equation (5.10) applies: ftens, F ax,,r min ax fax,90, lef,r 1 2 ;fhea, h ; (5.10) M2 In the case battens covers the thermal insulation material equation (5.11) applies: ftens, F ax,,r min ax fax,90, lef,r 1 2 ; ax fax,90, lef,b ; (5.11) M2 where: ax f ax,90, l ef,r l ef,b Factor, taing into account the angle between screw axis an grain irection accoring to A esign value of the axial withrawal parameter of the threae part of the screw perpenicular to the grain [N/mm²] outer threa iameter of the screw [mm] penetration length of the threae part of the screw in the rafter, l ef 40 mm penetration length of the threae part of the screw in the batten [mm] characteristic ensity of the woo-base member [g/m³], for LVL 500 g/m³, for ash, beech an oa 590 g/m³ angle between screw axis an grain irection, f hea, esign value of the hea pull-through parameter of the screw [N/mm²] h hea iameter [mm] f tens, characteristic tensile capacity of the screw accoring to annex 2 [N] M2 partial factor accoring to EN in conjunction with the particular national annex 1 min {1; 220/t HI } 2 min {1; 10% /0,12} t HI thicness of the thermal insulation material [mm] compressive stress of the thermal insulation material uner 10 % eformation [N/mm²] 10% If equation (5.10) or (5.11) is fulfille, the eflection of the battens oes not nee to be consiere when esigning the loa-carrying capacity of the screws. Fastening of thermal thermal insulation material material on top on top of rafters of rafters Annex 35 Z /16

31 Page 29 of European Technical Assessment A.5.3 Alternatively incline screws an thermal insulation material not in compression A Mechanical moel Depening on the screw spacing an the arrangement of tensile an compressive screws with ifferent inclinations the battens are loae by significant bening moments. The bening moments are erive base on the following assumptions: The tensile an compressive loas in the screws are etermine base on equilibrium conitions from the actions parallel an perpenicular to the roof plane. These actions are constant line loas q an q. The screws act as hinge columns supporte 10 mm within the batten or rafter, respectively. The effective column length consequently equals the length of the screw between batten an rafter plus 20 mm. The batten is consiere as a continuous beam with a constant span = A + B. The compressive screws constitute the supports of the continuous beam while the tensile screws transfer concentrate loas perpenicular to the batten axis. The screws are preominantly loae in withrawal or compression, respectively. The characteristic values of the screw s normal forces are etermine base on the loas parallel an perpenicular to the roof plane: Compressive screw: Nc, qii, q, sin(90 2 ) e cos 1 sin 1 / tan 2 sin( 1 2 ) (5.12) Tensile screw: qii, q, sin(90 1) Nt, e (5.13) cos 2 sin 2 / tan 1 sin( 1 2 ) e istance of the perpenicular to the grain inserte screws accoring to Figure 5.4 q II, characteristic value of the loas parallel to the roof plane q, characteristic value of the loas perpenicular to the roof plane Angle 1 an 2 between screw axis an grain irection, 30 α 1 90, 30 α 2 90 The bening moments in the batten follow from the constant line loa q an the loa components perpenicular to the batten from the tensile screws. The span of the continuous beam is (A + B). The characteristic value of the loa component perpenicular to the batten from the tensile screw is: qii, q, sin(90 1) sin 2 FZS, e (5.14) 1/ tan 1 1/ tan 2 sin( 1 2 ) A positive value for F ZS, means a loa towars the rafter, a negative value a loa away from the rafter. The system of the continuous beam is shown in Figure 5.4. The battens fixe on the rafter shall be supporte perpenicular to the loa-bearing plane. Fastening of thermal thermal insulation insulation material material on top on of top rafters of rafters Annex 5 Z /16

32 Page 30 of European Technical Assessment Figure A.5.4 Fastening of thermal insulation material on top of rafters - structural system for alternatively incline screws an continuous batten uner constant line loas from actions on the roof plane q an concentrate loas from tensile screws F ZS Fastening of thermal thermal insulation material material on top on top of rafters of rafters Annex 5 Z /16

33 Page 31 of European Technical Assessment A Design of the screws The esign value of the loa-carrying capacity of the screws shall be calculate accoring to equation (5.15) an (5.16). Screws loae in tension: b, r, ftens, F ax,,r min ax fax,90, lef,b ; ax fax,90, lef,r ; (5.15) M2 Screws loae in compression: b, r, c Npl, F ax,,r min ax fax,90, lef,b ; ax fax,90, lef,r ; (5.16) M1 where: ax f ax,90, l ef,b l ef,r b r factor, taing into account the angle between screw axis an grain irection accoring to A esign value of the axial withrawal parameter of the threae part of the screw perpenicular to the grain in the batten [N/mm²] outer threa iameter of the screw [mm] penetration length of the threae part of the screw in the batten [mm] penetration length of the threae part of the screw in the rafter, l ef 40 mm characteristic ensity of the batten [g/m³], for LVL 500 g/m³, for ash, beech an oa 590 g/m³ characteristic ensity of the rafter [g/m³], for LVL 500 g/m³, for ash, beech an oa 590 g/m³ angle 1 or 2 between screw axis an grain irection, 30 90, f tens, characteristic tensile capacity of the screw accoring to annex 2 [N] M1, M2 partial factor accoring to EN in conjunction with the particular national annex c N pl, bucling capacity of the screw accoring to table A.5.2 [N] Fastening of thermal thermal insulation material material on top on top of rafters of rafters Annex 5 Z /16

34 Page 32 of European Technical Assessment Table A.5.2 Characteristic bucling capacity of the screws c N pl, in N Free screw length L of the screws between batten an rafter [mm] HECO-TOPIX-CC HECO-TOPIX-T Carbon steel Fully threae HECO- TOPIX screws Outer threa iameter [mm] HECO-TOPIX-T Stainless steel c N pl, [N] Anlagenbeschreibung Fastening of thermal thermal insulation material material on top on top of rafters of rafters Annex X 5 Z /16

35 Page 33 of European Technical Assessment Nom. iameter 8,0 10,0 1 h upper Tol. lower Tol. 8,3 +0, ,5 upper Tol. lower Tol. 5,75 5,35 upper Tol. lower Tol. 14,8 +0 upper Tol. lower Tol. 7,1 6,3 18,5 +0 s P 10% 6,0 7,5 t upper Tol. 8,0 9,0 lower Tol. 6,0 7,0 Recess. HD/T-40 HD/T-40 upper Tol. 5 3,85 lower Tol. 2,85 3,4 A 6,8 6,8 Type: Flange hea h c b K C t upper Tol. lower Tol. 17, , upper Tol. lower Tol. Ca. 16 Ca. 20 upper Tol. lower Tol. 8 +0, ,5 upper Tol. 4,0 4,2 lower Tol. 3,3 3,5 upper Tol. 2,0 2,3 lower Tol. 1,5 1,7 upper Tol. 3,5 4,0 lower Tol. 3,0 L L1 L2 L1 L2 L1 L2 L1 L2 L1 L Other screw lengths with L min < L < L max an other threa lengths lg > 4* up to max. stanar threa length, are allowe 6,2 5,8 7,4 7,0 HECO-TOPIX-T Countersun Hea with unerhea threa T-Drive, alternatively flange hea Carbon an stainless steel Annex 6.1 Z /16

36 Page 34 of European Technical Assessment Nom. iameter 6,5 8,5 Screwe portion L1 1 P1 upper Tol. lower Tol. 6,0 +0,1 8,0 +0,1 upper Tol. lower Tol. upper Tol. 3,95 5,45 3,65 5,15 lower Tol. 4,5 6,0 Screwe portion L2 1 Cyliner hea h t upper Tol. lower Tol. 6,5 +0,2 8,5 +0,2 upper Tol. lower Tol. upper Tol. lower Tol. 5 3,75 5,2 3,45 4,85 4,2 5,3 3,8 5,1 5 upper Tol. lower Tol. 9,0 +0,2 12,0 +0,2 upper Tol. 2,8 3,6 lower Tol. 2,5 3,3 Recess HD/T-30 HD/T-40 Countersun h t upper Tol. lower Tol. 3,6 4,0 upper Tol. lower Tol. 11, ,8 +0-0,6 upper Tol. 5 lower Tol. 2,1 2,85 Recess HD/T-30 HD/T-40 L 6,5 8,5 P2 ( 6,5) P2 ( 8,5) L1 L2 L1 L ,75 +-1,75 4,25 5, ,0 +-1,85 4,33 5, ,3 +-2,3 4,36 5, ,3 +-2,3 4,38 5, , , ,85 5, Other screw lengths with L min < L < L max an other threa lengths lg > 4* up to max. stanar threa length, are allowe HECO-TOPIX CC T-Drive Carbon steel Annex 6.2 Z /16

37 Page 35 of European Technical Assessment Nom. iameter 3,5 4,0 4,5 5,0 6,0 8,0 10,0 1 h 3,6 +0,2 4,1 +0,2 4,6 +0,2 5,2 +0,2 6,2 +0,3 8,0 +0, ,45 2,4 2,05 5 2,3 2,55 6,8 +0,3 7,8 +0,3 8,7 +0,4 9,4 +0,4 11,8 +0-0,6 14, , ,45 2,75 3,3 s P 10% 3,0 3,4 3,8 4,5 6,0 7,5 2,1 1,8 2,5 2,1 2,7 2,3 Recess Z ,06 2,51 3,45 3,45 4,32 5,65 t 1,7 2,05 4 3,0 3,0 3,86 5,2 m 4,0 4,4 4,9 5,3 6,6 8,5 9,8 L Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt * * * * * L V =L L V =L L V =L Lv an * without shan ribs with 20mm graing with 20mm graing Other screw lengths with L min < L < L max an other threa lengths lg > 4* up to max. stanar threa length, are allowe 3,4 3,0 3,65 3,45 3,0 3,95 3,55 4,4 4,2 3,6 5,45 5,05 5,8 5,6 4,0 6,65 6,2 7,1 6,9 6,0 5,2 HECO-TOPIX Countersun Hea Pozi-Drive Carbon steel Annex 6.3 Z /16

38 Page 36 of European Technical Assessment Nom. iameter 3,5 4,0 4,5 5,0 6,0 8,0 10,0 1 h 3,6 +0,2 4,1 +0,2 4,6 +0,2 5,2 +0,2 6,2 +0,3 8,0 +0, ,45 2,4 2,05 5 2,3 2,55 6,8 +0,3 7,8 +0,3 8,7 +0,4 9,4 +0,4 11,8 +0-0,6 14, , ,45 2,75 3,3 s P 10% 3,0 3,4 3,8 4,5 6,0 7,5 t 2,1 1,8 2,5 2,1 2,7 2,3 Recess HD/T-15 HD/T-15 HD/T-25 HD/T-25 HD/T-25 HD/T-40 HD/T-40 1,47 1,65 1,8 2,15 5 3,85 1,27 1,4 1,5 1,85 2,3 2,85 3,4 A 3,35 3,35 4,53 4,53 4,53 6,8 6,8 L Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt * * * * * L V =L L V =L- L V =L Lv an * without shan ribs with 20mm graing with 20mm graing Other screw lengths with L min < L < L max an other threa lengths lg > 4* up to max. stanar threa length, are allowe 3,4 3,0 3,65 3,45 3,0 3,95 3,55 4,4 4,2 3,6 5,45 5,05 5,8 5,6 4,0 6,65 6,2 7,1 6,9 6,0 5,2 HECO-TOPIX Countersun Hea T-Drive Carbon steel Annex 6.4 Z /16

39 Page 37 of European Technical Assessment Nom. iameter 3,5 4,0 4,5 5,0 6,0 8,0 10,0 1 h 3,6 +0,2 4,1 +0,2 4,6 +0,2 5,2 +0,2 6,2 +0,3 8,0 +0, ,45 2,4 2,05 5 2,3 2,55 3,4 3,0 3,95 3,55 6,8 +0,3 7,8 +0,3 8,7 +0,4 9,4 +0,4 11,8 +0-0,6 5 2,45 2,75 3,3 5,45 5, ,8 5,8 5,6 6,65 6, ,5 7,1 6,9 s P 10% 3,0 3,4 3,8 4,5 6,0 7,5 2,35 2,9 2,55 3,05 2,75 Recess Z ,85 2,46 2,72 5 3,48 4,17 5,69 t 1,6 2,2 2,26 2,59 3,02 3,71 5,23 m 3,8 4,4 4,6 5,1 6,7 8,5 9,9 L Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt * * * * * in 20mm graing in 20mm graing Other srew lenghts with L min < L < L max an other threa lengths lg > 4* up to max. stanar threa length, are allowe 3,65 3,45 3,4 4,4 4,2 4,0 3,7 5,4 5,0 6,5 6,1 HECO-FIX-plus Pan Hea Pozi-Drive Carbon steel Annex 6.5 Z /16

40 Page 38 of European Technical Assessment Nom. iameter 3,5 4,0 4,5 5,0 6,0 8,0 10,0 1 h 3,6 +0,2 4,1 +0,2 4,6 +0,2 5,2 +0,2 6,2 +0,3 8,0 +0, ,45 2,4 2,05 5 2,3 2,55 6,8 +0,3 7,8 +0,3 8,7 +0,4 9,4 +0,4 11,8 +0-0,6 14, , ,45 2,75 3,3 s P 10% 3,0 3,4 3,8 4,5 6,0 7,5 t 2,35 2,9 2,55 3,05 2,75 Recess HD/T-15 HD/T-15 HD/T-25 HD/T-25 HD/T-25 HD/T-40 HD/T-40 1,85 2,46 2,72 5 3,48 5 3,85 1,6 2,2 2,26 9 3,02 2,85 3,4 A 3,35 3,35 4,53 4,53 4,53 6,8 6,8 L Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt * * * * * with 20mm graing with 20mm graing Other screw lengths with L min < L < L max an other threa lengths lg > 4* up to max. stanar threa length, are allowe 3,4 3,0 3,65 3,45 3,4 3,95 3,55 4,4 4,2 4,0 3,7 5,45 5,05 5,8 5,6 5,4 5,0 6,65 6,2 7,1 6,9 6,5 6,1 HECO-TOPIX Pan Hea T-Drive Carbon steel Annex 6.6 Z /16

41 Page 39 of European Technical Assessment Nom. iameter 3,5 4,0 4,5 5,0 6,0 8,0 10,0 1 h 3,6 +0,25 4,1 +0,25 4,6 +0,25 5,2 +0,2 6,2 +0,3 8,0 +0, ,45 2,55 2,2 3,25 2,85 3,7 3,35 4,4 4,05 6,8 +0,3 7,8 +0,3 8,7 +0,4 9,4 +0,4 11,8 +0-0,6 2,75 2,55 5 3,45 3,25 5,45 5, ,8 5,8 5,6 6,65 6, ,5 7,1 6,9 s P 10% 3,0 3,4 3,8 4,5 6,0 7,5 f 2,1 1,8 2,5 2,1 2,7 2,3 3,0 3,6 4,0 6,0 5,2 1,2 1,3 1,55 1,55 1,95 2,2 3,3 0,9 1,0 1,15 1,15 1,55 1,7 2,8 Recess Z ,11 2,72 5 3,35 3,86 4,52 6,17 t 1,65 2,26 9 2,89 3,4 4,06 5,71 m 4,0 4,6 5,1 5,3 7,1 8,8 10,4 L Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt * * * * * Lv an * without shan ribs with 20mm graing with 20mm graing with 20mm graing Other screw lengths with L min < L < L max an other threa lengths lg > 4* up to max. stanar threa length, are allowe 3,9 3,7 4,5 HECO-TOPIX Raise Countersun Pozi-Drive Carbon steel Annex 6.7 Z /16

42 Page 40 of European Technical Assessment Nom. iameter 3,5 4,0 4,5 5,0 6,0 8,0 10,0 1 h 3,6 +0,2 4,1 +0,2 4,6 +0,2 5,2 +0,2 6,2 +0,3 8,0 +0, ,45 2,4 2,05 5 2,3 2,55 3,4 3,0 3,95 3,55 6,8 +0,3 7,8 +0,3 8,7 +0,4 9,4 +0,4 11,8 +0-0,6 5 2,45 2,75 3,3 5,45 5, ,8 5,8 5,6 6,65 6, ,5 7,1 6,9 s P 10% 3,0 3,4 3,8 4,5 6,0 7,5 f t 2,1 1,8 2,5 2,1 2,7 2,3 3,0 3,6 4,0 6,0 5,2 1,05 1,3 1,35 1,35 1,95 2,2 3,3 0,75 1,0 0,95 0,95 1,55 1,7 2,8 Recess HD/T-15 HD/T-15 HD/T-25 HD/T-25 HD/T-25 HD/T-40 HD/T-40 1,47 1,65 1,8 2,15 5 3,85 1,27 1,4 1,5 1,85 2,3 2,85 3,4 A 3,35 3,35 4,53 4,53 4,53 6,8 6,8 L Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt * * * * * Lv an * without shan ribs with 20mm graing with 20mm graing with 20mm graing ,65 3,45 Other screw lengths with L min < L < L max an other threa lengths lg > 4* up to max. stanar threa length, are allowe 4,4 4,2 HECO-FIX-plus Raise Countersun T-Drive Carbon Steel Annex 6.8 Z /16

43 Page 41 of European Technical Assessment Nom. iameter 6,0 8,0 10,0 1 h b s 6,2 +0,3 8 +0, ,45 3,95 3,55 5,45 5, , , ,2 +0,3 8 +0, ,5 4,4 5,8 7,1 4,2 5,6 6,9 c ca. 12 ca. 16 ca. 20 P 10% 4,5 6,0 7,5 2,9 4,0 4,2 2,2 3,3 3,5 1,8 1,1 2,0 2,0 f c t Recess HD/T-25 HD/T-40 HD/T-40 2,7 3,5 4,0 2,4 3,0 A 4,5 6,8 6,8 L Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt L V =L Lv an * without shan ribs 70 L V =L LV=L with 20mm graing with 20mm graing Other screw lengths with L min < L < L max an other threa lengths lg > 4* up to max. stanar threa length, are allowe 1,7 1,2 2,0 1,5 6,65 6,2 2,3 1,7 HECO-TOPIX Flange Hea T-Drive Carbon steel Annex 6.9 Z /16

44 Page 42 of European Technical Assessment Nom. iameter 8,0 10,0 1 h s 8 +0, ,45 5,45 5, ,8 7,1 5,6 6,9 c ca. 13 ca. 16 P 10% 6,0 7,5 4,0 4,2 3,3 3,5 2,0 2,0 f c t Recess HD/-T40 HD/-T40 3,5 4,0 3,0 A 6,8 6,8 L Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv an * without shan ribs L V =L L V =L with 20mm graing with 20mm graing Other screw lengths with L min < L < L max an other threa lengths lg > 4* up to max. stanar threa length, are allowe 2,0 1,5 6,65 6,2 2,3 1,7 HECO-TOPIX Flange Hea, alternative T-Drive Carbon steel Annex 6.10 Z /16

45 Page 43 of European Technical Assessment Nom. iameter 6,0 8,0 10,0 1 SW 6,2 +0,3 8 +0, , ,95 3,55 6,2 +0, 3 5,45 5, , 5 5,8 5,6 6,65 6, s P 10% 4,5 6,0 7,5 f t 4,8 4,4 5,2 4,8 5,3 2,3 2,3 2,3 1,7 1,7 1,7 Recess HD/T-25 HD/T-40 HD/T-40 2,7 3,5 4,0 2,4 3,0 A 4,5 6,8 6,8 L Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt L V = L L V = L- L V = L Other screw lengths with L min < L < L max an other threa lengths lg > 4* up to max. stanar threa length, are allowe 4,4 4,2 7,1 6,9 HECO-TOPIX Hexagon Hea T-Drive Carbon steel Annex 6.11 Z /16

46 Page 44 of European Technical Assessment Nom. iameter 3,5 4,0 4,5 5,0 6,0 8,0 10,0 1 h 3,6 +0,2 4,1 +0,2 4,6 +0,2 5,2 +0,2 6,2 +0,3 8,0 +0, ,45 2,55 2,2 3,25 2,85 6,8 +0,3 7,8 +0,3 8,7 +0,4 9,4 +0,4 11,8 +0-0,6 14, ,5 +0 2,75 2,55 5 3,45 3,25 s P 10% 3,0 3,4 3,8 4,5 6,0 7,5 2,1 1,8 2,5 2,1 2,7 2,3 Recess Z ,06 2,51 3,45 3,45 4,32 5,65 t 1,7 2,05 4 3,0 3,0 3,86 5,2 m 4,0 4,4 4,9 5,3 6,6 8,5 9,8 L Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt * * * * * L V =L L V =L L V =L Lv an * without shan ribs with 20mm graing with 20mm graing Other screw lengths with L min < L < L max an other threa lengths lg > 4* up to max. stanar threa length, are allowe 3,7 3,35 3,9 3,7 3,0 4,4 4,05 4,5 3,6 5,45 5,05 5,8 5,6 4,0 6,65 6,2 7,1 6,9 6,0 5,2 HECO-TOPIX Countersun Hea Pozi-Drive Stainless steel Annex 6.12 Z /16

47 Page 45 of European Technical Assessment Nom. iameter 3,5 4,0 4,5 5,0 6,0 8,0 10,0 1 h 3,6 +0,2 4,1 +0,2 4,6 +0,2 5,2 +0,2 6,2 +0,3 8,0 +0, ,45 2,55 2,2 3,25 2,85 6,8 +0,3 7,8 +0,3 8,7 +0,4 9,4 +0,4 11,8 +0-0,6 14, ,5 +0 2,75 2,55 5 3,45 3,25 s P 10% 3,0 3,4 3,8 4,5 6,0 7,5 t 2,1 1,8 2,5 2,1 2,7 2,3 Recess HD/T-15 HD/T-15 HD/T-25 HD/T-25 HD/T-25 HD/T-40 HD/T-40 1,47 1,65 1,8 2,15 5 3,85 1,27 1,4 1,5 1,85 2,3 2,85 3,4 A 3,35 3,35 4,53 4,53 4,53 6,8 6,8 L Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt * * * * * L V =L L V =L L V =L Lv an * without shan ribs with 20mm graing with 20mm graing Other screw lengths with L min < L < L max an other threa lengths lg > 4* up to max. stanar threa length, are allowe 3,7 3,35 3,9 3,7 3,0 4,4 4,05 4,5 3,6 5,45 5,05 5,8 5,6 4,0 6,65 6,2 7,1 6,9 6,0 5,2 HECO-TOPIX Countersun Hea T-Drive Stainless steel Annex 6.13 Z /16

48 Page 46 of European Technical Assessment Nom. iameter 3,5 4,0 4,5 5,0 6,0 8,0 10,0 1 h 3,6 +0,2 4,1 +0,2 4,6 +0,2 5,2 +0,2 6,2 +0,3 8,0 +0, ,45 2,55 2,2 3,25 2,85 6,8 +0,3 7,8 +0,3 8,7 +0,4 9,4 +0,4 11,8 +0-0,6 14, ,5 +0 2,75 2,55 5 3,45 3,25 s P 10% 3,0 3,4 3,8 4,5 6,0 7,5 2,35 2,9 2,55 3,05 2,75 Recess Z ,85 2,46 2,72 5 3,48 4,17 5,69 t 1,6 2,2 2,26 2,59 3,02 3,71 5,23 m 3,8 4,4 4,6 5,1 6,7 8,5 9,9 L Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt * * * * * Lv an * without shan ribs with 20mm graing with 20mm graing Other screw lengths with L min < L < L max an other threa lengths lg > 4* up to max. stanar threa length, are allowe 3,7 3,35 3,9 3,7 3,4 4,4 4,05 4,5 4,0 3,7 5,45 5,05 5,8 5,6 5,4 5,0 6,65 6,2 7,1 6,9 6,5 6,1 HECO-TOPIX Pan Hea Pozi-Drive Stainless steel Annex 6.14 Z /16

49 Page 47 of European Technical Assessment Nom. iameter 3,5 4,0 4,5 5,0 6,0 8,0 10,0 1 h 3,6 +0,2 4,1 +0,2 4,6 +0,2 5,2 +0,2 6,2 +0,3 8,0 +0, ,45 2,55 2,2 3,25 2,85 6,8 +0,3 7,8 +0,3 8,7 +0,4 9,4 +0,4 11,8 +0-0,6 14, ,5 +0 2,75 2,55 5 3,45 3,25 s P 10% 3,0 3,4 3,8 4,5 6,0 7,5 t 2,35 2,9 2,55 3,05 2,75 Recess HD/T-15 HD/T-15 HD/T-25 HD/T-25 HD/T-25 HD/T-40 HD/T-40 1,85 2,46 2,72 5 3,48 5 3,85 1,6 2,2 2,26 9 3,02 2,85 3,4 A 3,35 3,35 4,53 4,53 4,53 6,8 6,8 L Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt * * * * * Lv an * without shan ribs with 20mm graing with 20mm graing Other screw lengths with L min < L < L max an other threa lengths lg > 4* up to max. stanar threa length, are allowe 3,7 3,35 3,9 3,7 3,4 4,4 4,05 4,5 4,0 3,7 5,45 5,05 5,8 5,6 5,4 5,0 6,65 6,2 7,1 6,9 6,5 6,1 HECO-TOPIX Pan Hea T-Drive Stainless steel Annex 6.15 Z /16

50 Page 48 of European Technical Assessment Nom. iameter 3,5 4,0 4,5 5,0 6,0 8,0 10,0 1 h 3,6 +0,25 4,1 +0,25 4,6 +0,25 5,2 +0,2 6,2 +0,3 8,0 +0, ,45 2,55 2,2 3,25 2,85 3,7 3,35 4,4 4,05 6,8 +0,3 7,8 +0,3 8,7 +0,4 9,4 +0,4 11,8 +0-0,6 2,75 2,55 5 3,45 3,25 5,45 5, ,8 5,8 5,6 6,65 6, ,5 7,1 6,9 s P 10% 3,0 3,4 3,8 4,5 6,0 7,5 f 2,1 1,8 2,5 2,1 2,7 2,3 3,0 3,6 4,0 6,0 5,2 1,2 1,3 1,55 1,55 1,95 2,2 3,3 0,9 1,0 1,15 1,15 1,55 1,7 2,8 Recess Z ,11 2,72 5 3,35 3,86 4,52 6,17 t 1,65 2,26 9 2,89 3,4 4,06 5,71 m 4,0 4,6 5,1 5,3 7,1 8,8 10,4 L Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt * * * * * Lv an * without shan ribs with 20mm graing with 20mm graing with 20mm graing Other screw lengths with L min < L < L max an other threa lengths lg > 4* up to max. stanar threa length, are allowe 3,9 3,7 4,5 HECO-TOPIX Raise Countersun Hea Pozi-Drive Stainless steel Annex 6.16 Z /16

51 Page 49 of European Technical Assessment Nom. iameter 3,5 4,0 4,5 5,0 6,0 8,0 10,0 1 h 3,6 +0,2 4,1 +0,2 4,6 +0,2 5,2 +0,2 6,2 +0,3 8,0 +0, ,45 2,55 2,2 3,25 2,85 3,7 3,35 4,4 4,05 6,8 +0,3 7,8 +0,3 8,7 +0,4 9,4 +0,4 11,8 +0-0,6 2,75 2,55 5 3,45 3,25 5,45 5, ,8 5,8 5,6 6,65 6, ,5 7,1 6,9 s P 10% 3,0 3,4 3,8 4,5 6,0 7,5 f t 2,1 1,8 2,5 2,1 2,7 2,3 3,0 3,6 4,0 6,0 5,2 1,05 1,3 1,35 1,35 1,95 2,2 3,3 0,75 1,0 0,95 0,95 1,55 1,7 2,8 Recess HD/T-15 HD/T-15 HD/T-25 HD/T-25 HD/T-25 HD/T-40 HD/T-40 1,47 1,65 1,8 2,15 5 3,85 1,27 1,4 1,5 1,85 2,3 2,85 3,4 A 3,35 3,35 4,53 4,53 4,53 6,8 6,8 L Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt * * * * * Lv an * without shan ribs with 20mm graing with 20mm graing with 20mm graing Other screw lengths with L min < L < L max an other threa lengths lg > 4* up to max. stanar threa length, are allowe 3,9 3,7 4,5 HECO-TOPIX Raise Countersun Hea T-Drive Stainless steel Annex 6.17 Z /16

52 Page 50 of European Technical Assessment Nom. iameter 6,0 8,0 10,0 1 h b s 6,2 +0,3 8 +0, ,45 3,95 3,55 5,45 5, , , ,2 +0,3 8 +0, ,5 4,4 4,2 5,8 5,6 7,1 6,9 c ca. 12 ca. 16 ca. 20 P 10% 4,5 6,0 7,5 2,9 4,0 4,2 2,2 3,3 3,5 1,8 1,1 2,0 2,0 f c t Recess HD/T-25 HD/T-40 HD/T-40 2,7 3,5 4,0 2,4 3,0 A 4,5 6,8 6,8 L Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt L V =L Lv an * without shan ribs 70 L V =L- 100 L V =L with 20mm graing with 20mm graing Other screw lengths with L min < L < L max an other threa lengths lg > 4* up to max. stanar threa length, are allowe 1,7 1,2 2,0 1,5 6,65 6,2 2,3 1,7 HECO-TOPIX Flange Hea T-Drive Stainless steel Annex 6.18 Z /16

53 Page 51 of European Technical Assessment Nom. iameter 6,0 8,0 10,0 1 SW 6,2 +0,3 8 +0, , ,95 3,55 6,2 +0, 3 5,45 5, , 5 5,8 5,6 6,65 6, s P 10% 4,5 6,0 7,5 f t 4,8 4,4 5,2 4,8 5,3 2,3 2,3 2,3 1,7 1,7 1,7 Recess HD/T-25 HD/T-40 HD/T-40 2,7 3,5 4,0 2,4 3,0 A 4,5 6,8 6,8 L Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt L V =L L V =L- L V =L Other screw lengths with L min < L < L max an other threa lengths lg > 4* up to max. stanar threa length, are allowe 4,4 4,2 7,1 6,9 HECO-TOPIX Hexagon Hea T-Drive Stainless steel Annex 6.19 Z /16

54 Page 52 of European Technical Assessment Nom. iameter 3,5 4,0 4,5 5,0 6,0 8,0 10,0 1 h 3,5 +0,2 4,0 +0,2 4,4 +0,3 5 4,9 +0,35 5 6,0 +0,3 7,8 +0, ,2 2,35 2,0 2,25 2,9 2,5 6,8 +0,3 7,8 +0,3 8,7 +0,4 9,4 +0,4 11,8 +0-0,6 14, , ,45 2,75 3,3 s P 10% 1,75-2,1 2,0-2,5 2,25-2,8 2,5-3,0-3,75 4,0 5,0 2,1 1,8 2,5 2,1 2,7 2,3 Recess Z ,06 2,51 3,45 3,45 4,32 5,65 t 1,7 2,05 4 3,0 3,0 3,86 5,2 m 4,0 4,4 4,9 5,3 6,6 8,5 9,8 L Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt with 20mm graing with 20mm graing with 20mm graing 100 Other screw lengths with L min < L < L max an other threa lengths lg > 4* up to max. stanar threa length, are allowe 3,2 2,8 3,7 3,5 3,0 3,95 3,5 4,4 4,2 3,6 5,2 5,8 5,6 4,0 6,5 6,0 7,1 6,9 6,0 5,2 HECO-FIX-plus Countersun Hea Pozi-Drive Carbon steel Annex 6.20 Z /16

55 Page 53 of European Technical Assessment Nom. iameter 3,5 4,0 4,5 5,0 6,0 8,0 10,0 1 h 3,5 +0,2 4,0 +0,2 4,4 +0,3 5 4,9 +0,35 5 6,0 +0,3 7,8 +0, ,2 2,35 2,0 2,25 2,9 2,5 6,8 +0,3 7,8 +0,3 8,7 +0,4 9,4 +0,4 11,8 +0-0,6 14, , ,45 2,75 3,3 s P 10% 1,75-2,1 2,0-2,5 2,25-2,8 2,5-3,0-3,75 4,0 5,0 2,1 1,8 2,5 2,1 2,7 2,3 Recess HD/T-15 HD/T-15 HD/T-25 HD/T-25 HD/T-25 HD/T-40 HD/T-40 1,47 1,65 1,8 2,15 5 3,85 t 1,27 1,4 1,5 1,85 2,3 2,85 3,4 A 3,35 3,35 4,53 4,53 4,53 6,8 6,8 L Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt with 20mm graing with 20mm graing with 20mm graing 100 Other screw lengths with L min < L < L max an other threa lengths lg > 4* up to max. stanar threa length, are allowe 3,2 2,8 3,7 3,5 3,0 3,95 3,5 4,4 4,2 3,6 5,2 5,8 5,6 4,0 6,5 6,0 7,1 6,9 6,0 5,2 HECO-FIX-plus Countersun Hea T-Drive Carbon steel Annex 6.21 Z /16

56 Page 54 of European Technical Assessment Nom. iameter 3,5 4,0 4,5 5,0 6,0 8,0 10,0 1 h 3,5 +0,2 4,0 +0,2 4,4 +0,3 5 4,9 +0,35 5 6,0 +0,3 7,8 +0, ,2 2,35 2,0 2,25 2,9 2,5 6,8 +0,3 7,8 +0,3 8,7 +0,4 9,4 +0,4 11,8 +0-0,6 14, , ,45 2,75 3,3 s P 10% 1,75-2,1 2,0-2,5 2,25-2,8 2,5-3,0-3,75 4,0 5,0 2,35 2,9 2,55 3,05 2,75 Recess Z ,85 2,46 2,72 5 3,48 4,17 5,69 t 1,6 2,2 2,26 9 3,02 3,71 5,23 m 3,8 4,4 4,6 5,1 6,7 8,5 9,9 L Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt with 20mm graing with 20mm graing with 20mm graing 100 Other screw lengths with L min < L < L max an other threa lengths lg > 4* up to max. stanar threa length, are allowe 3,2 2,8 3,7 3,5 3,4 3,95 3,5 4,4 4,2 4,0 3,7 5,2 5,8 5,6 5,4 5,0 6,5 6,0 7,1 6,9 6,5 6,1 HECO-FIX-plus Pan Hea Pozi-Drive Carbon Steel Annex 6.22 Z /16

57 Page 55 of European Technical Assessment Nom. iameter 3,5 4,0 4,5 5,0 6,0 8,0 10,0 1 h 3,5 +0,2 4,0 +0,2 4,4 +0,3 5 4,9 +0,35 5 6,0 +0,3 7,8 +0, ,2 2,35 2,0 2,25 2,9 2,5 6,8 +0,3 7,8 +0,3 8,7 +0,4 9,4 +0,4 11,8 +0-0,6 14, , ,45 2,75 3,3 s P 10% 1,75-2,1 2,0-2,5 2,25-2,8 2,5-3,0-3,75 4,0 5,0 2,35 2,9 2,55 3,05 2,75 Recess HD/T-15 HD/T-15 HD/T-25 HD/T-25 HD/T-25 HD/T-40 HD/T-40 1,5 1,7 1,9 2,2 2,7 5 3,85 t 1,2 1,3 1,4 1,8 2,2 2,85 3,4 A 3,35 3,35 4,53 4,53 4,53 6,8 6,8 L Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt with 20mm graing with 20mm graing with 20mm graing 100 Other screw lengths with L min < L < L max an other threa lengths lg > 4* up to max. stanar threa length, are allowe 3,2 2,8 3,7 3,5 3,4 3,95 3,5 4,4 4,2 4,0 3,7 5,2 5,8 5,6 5,4 5,0 6,5 6,0 7,1 6,9 6,5 6,1 HECO-FIX-plus Pan Hea T-Drive Carbon steel Annex 6.23 Z /16

58 Page 56 of European Technical Assessment Nom. iameter 3,5 4,0 4,5 5,0 6,0 8,0 10,0 1 h 3,5 +0,2 4,0 +0,2 4,4 +0,3 5 4,9 +0,35 5 6,0 +0,3 7,8 +0, ,2 2,35 2,0 2,25 2,9 2,5 3,2 2,8 3,95 3,5 6,8 +0,3 7,8 +0,3 8,7 +0,4 9,4 +0,4 11,8 +0-0,6 5 2,45 2,75 3,3 5, ,8 5,8 5,6 6,5 6, ,5 7,1 6,9 s P 10% 1,75-2,1 2,0-2,5 2,25-2,8 2,5-3,0-3,75 4,0 5,0 f 2,1 1,8 2,5 2,1 2,7 2,3 3,0 3,6 4,0 6,0 5,2 1,2 1,3 1,45 1,55 1,95 2,2 3,3 0,9 1,0 1,15 1,15 1,55 1,7 2,8 Recess Z ,11 2,72 5 3,35 3,86 4,52 6,17 t 1,6 2,26 2,89 3,4 4,06 5,71 m 4,0 4,6 5,1 5,3 7,1 8,8 10,4 L Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt with 20mm graing with 20mm graing with 20mm graing 100 Other screw lengths with L min < L < L max an other threa lengths lg > 4* up to max. stanar threa length, are allowe 3,7 3,5 4,4 4,2 HECO-FIX-plus Raise Countersun Hea Pozi-Drive Carbon steel Annex 6.24 Z /16

59 Page 57 of European Technical Assessment Nom. iameter 3,5 4,0 4,5 5,0 6,0 8,0 10,0 1 h 3,5 +0,2 4,0 +0,2 4,4 +0,3 5 4,9 +0,35 5 6,0 +0,3 7,8 +0, ,2 2,35 2,0 2,25 2,9 2,5 3,2 2,8 3,95 3,5 6,8 +0,3 7,8 +0,3 8,7 +0,4 9,4 +0,4 11,8 +0-0,6 5 2,45 2,75 3,3 5, ,8 5,8 5,6 6,5 6, ,5 7,1 6,9 s P 10% 1,75-2,1 2,0-2,5 2,25-2,8 2,5-3,0-3,75 4,0 5,0 f t 2,1 1,8 2,5 2,1 2,7 2,3 3,0 3,6 4,0 6,0 5,2 1,0 1,3 1,2 1,3 1,95 2,1 3,3 0,7 1,0 0,9 0,9 1,55 1,7 2,8 Recess HD/T-15 HD/T-15 HD/T-25 HD/T-25 HD/T-25 HD/T-40 HD/T-40 1,47 1,65 1,8 2,15 5 3,85 1,27 1,4 1,5 1,85 2,3 2,85 3,4 A 3,35 3,35 4,53 4,53 4,53 6,8 6,8 L Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt with 20mm graing with 20mm graing with 20mm graing 100 Other screw lengths with L min < L < L max an other threa lengths lg > 4* up to max. stanar threa length, are allowe 3,7 3,5 4,4 4,2 HECO-FIX-plus Raise Countersun Hea T-Drive Carbon steel Annex 6.25 Z /16

60 Page 58 of European Technical Assessment Nom. iameter 3,5 4,0 4,5 5,0 6,0 8,0 10,0 1 h 3,5 +0,25 4,0 +0,25 4,5 +0,25 5,0 +0,25 6,0 +0,3 7,8 +0, ,2 2,5 2,2 2,9 2,55 2,7 6,8 +0,3 7,8 +0,3 8,7 +0,4 9,4 +0,4 11,8 +0-0,6 14, ,5 +0 2,7 5 3,45 3,25 s P 10% 1,75-2,1 2,0-2,5 2,25-2,8 2,5-3,0-3,75 4,0 5,0 2,1 1,8 2,5 2,1 2,7 2,3 Recess Z ,06 2,51 3,45 3,45 4,32 5,65 t 1,7 2,05 4 3,0 3,0 3,86 5,2 m 4,0 4,4 4,9 5,3 6,6 8,5 9,8 L Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt with 20mm graing with 20mm graing with 20mm graing 100 Other screw lengths with L min < L < L max an other threa lengths lg > 4* up to max. stanar threa length, are allowe 3,5 3,05 3,78 3,58 3,0 4,1 3,65 4,4 4,2 3,6 5,2 5,8 5,6 4,0 6,5 6,0 7,1 6,9 6,0 5,2 HECO-FIX-plus Countersun Hea Pozi-Drive Stainless steel Annex 6.26 Z /16

61 Page 59 of European Technical Assessment Nom. iameter 3,5 4,0 4,5 5,0 6,0 8,0 10,0 1 h 3,5 +0,25 4,0 +0,25 4,5 +0,25 5,0 +0,25 6,0 +0,3 7,8 +0, ,2 2,5 2,2 2,9 2,55 2,7 6,8 +0,3 7,8 +0,3 8,7 +0,4 9,4 +0,4 11,8 +0-0,6 14, ,5 +0 2,7 5 3,45 3,25 s P 10% 1,75-2,1 2,0-2,5 2,25-2,8 2,5-3,0-3,75 4,0 5,0 2,1 1,8 2,5 2,1 2,7 2,3 Recess HD/T-15 HD/T-15 HD/T-25 HD/T-25 HD/T-25 HD/T-40 HD/T-40 1,47 1,65 1,8 2,15 5 3,85 t 1,27 1,4 1,5 1,85 2,3 2,85 3,4 A 3,35 3,35 4,53 4,53 4,53 6,8 6,8 L Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt Lv Lt with 20mm graing with 20mm graing with 20mm graing 100 Other screw lengths with L min < L < L max an other threa lengths lg > 4* up to max. stanar threa length, are allowe 3,5 3,05 3,78 3,58 3,0 4,1 3,65 4,4 4,2 3,6 5,2 5,8 5,6 4,0 6,5 6,0 7,1 6,9 6,0 5,2 HECO-FIX-plus Countersun Hea T-Drive Stainless steel Annex 6.27 Z /16