Threaded inserts for metal

Transcription

1 ... technologies for a reliable hold Threaded inserts for metal nsat Gripp Mubux Z Mubux M Technical publication No.0

2 Fastening technology from KerbKonus is in successful application in a wide variety of different industrial sectors around the world. Stateoftheart production facilities provide our customers with the assurance of quality and reliable delivery, and sophisticated fastening solutions for every conceivable field of application are implemented by our own Research and Development Department. Close cooperation and exchange of experience and expertise on an international level ensure that our company stays at the cutting edge of technological development. With independent branches and agencies operating in a number of countries around the world we are a truly reliable partner when it comes to secure fastening technology.... our products and services Depending on the required anchoring method in the material, KerbKonus offers a variety of ed insert options: selftapping ed inserts for metal, wood and plastics, Threaded inserts for cold embedding Threaded inserts for hot or ultrasound embedding Threaded inserts for screwing into an internal Threaded inserts for riveting longside its longstanding, proven spectrum of ed inserts for a wide variety of applications, KerbKonus also offers a range of fastening technologyrelated products and services: Punched rivet system for thin mouldings Screw locking Thread sealing systems Insulating plastic coating If you have a specific problem related to the field of fastening technology with its rich fund of expertise and comprehensive product range, KerbKonus has the solution for you. Technical details on KerbKonus products are also provided on our homepage: KerbKonusVertriebsGmbH WernhervonraunStraße Industriegebiet Nord D4 mberg Phone +4 0 Fax KKVmberg@kerbkonus.de Internet

3 Threaded inserts for metal... Dimensions Threaded inserts from KerbKonus Tested quality; Test methods Page and 3 nsat the selftapping ed insert; Pullout strength; Installation Page 4 to nsat S 30 and nsat SK 30 M to M30 selftapping Form cast or very high Page and with cutting slot drilled 30 M4 to M / and head Page 30 nsat S 30/30 and nsat SK 30 /30 M3 to M selftapping Form cast or very high Page with 3 cutting bores drilled 30/30 M to M / and head Page 30 /30 nsat SN 3/3 M4 to M selftapping with 3 Form cast or very high Page bores and safety drilled 3/3 groove nut, grooved stud as a locking element nsat SS 33/33 and nsat ST 3/3 M3 to M selftapping with 3 Form cast or very high Page 3 cutting bores as chip drilled 33/33 reservoirs Tank version additionally with closed floor 3/3 nsat SD/SD 303/34/34 M3 to M as 30/30/30 Form cast or high Page and but in a special drilled 303 thinwalled version M3. to M 34/34 nsat SI 30 and nsat SI 30 /30 M4 to M selftapping with Form cast or very high Page cutting slot or with drilled 30 3 cutting bores and hexagonal socket 30 Mubux Z 0 M4 and Threaded inserts Form cast or medium Page M for embedding drilled 0/ Mubux MO 0 M3 to Outside coated drilled and high Page and M with precote 0 for tapped 0 antirotation and (standard sealing ) nsat Gripp 304 Mx./mm drilled for spark plugs very high Page and 0 Mx./mm Retaining, 304 Mx./mm selftapping, with cutting bore Installation tools nsat installation Product features Retaining hole Pullout strength Specifications Tools 0 / / / Page Manual installation Page Machine installation Page 3 Other details

4 t our parent plant in mberg, we produce ed inserts using efficient production methods. team of qualified and highly motivated staff guarantees a consistent, high standard of production. What really counts: tested quality. The number of products manufactured over the company's history reaches into the billions. Stateoftheart automation lines manufacture around the clock in a precise and high standard of quality. The efficient and lowcost production of largescale product series is one of the strengths on which we have based our success. ut our highvolume production output in no way compromises flexibility. We are able to quickly and efficiently produce even small batches of nonstandard items. Our state of the art stock control system permits the reliable, prompt delivery of standard products, keeping your production running to schedule at all times and helping to minimize your warehousing costs. We are particularly proud of a costtoperformance ratio which ensures satisfied customers the world over. This has made KerbKonus a reputable and respected partner to industry in the global marketplace. Quality is a top priority issue at KerbKonus. Quality consciousness is a continuous running through every aspect of the company's work and all its products and services. Quality is lived and breathed at KerbKonus. Quality System DQS Certificate in accordance with DIN N ISO 00:000 Reg. no QM ISO/TS :00 Reg. no TS/ ll the most important certifications and approvals are always kept consistently up to date, and our company is audited regularly for compliance with the most important international standards.

5 technologies for a reliable hold pplications on the test stand... Threaded inserts from KerbKonus are manufactured in large piece numbers. nd human lives and safety can often depend upon just these tiny components, for instance in the case of airbag retaining fasteners. ecause we bear this heavy responsibility, our products are tested and monitored in line with the most stringent directives. In the case of particularly critical applications, each and every part is exhaustively tested on stateoftheart test equipment before it is delivered to you. Test methods The loading capacity of a depends in the main on the surface shell of the component which is exposed to shearing stress. y selecting just the right ed insert for each application, maximum reliability can be achieved. Using tried and tested, practically oriented test methods (see the table below), we provide the designer with a set of reliable specifications to ensure safe, reliable compliance with any application requirement, however unusual. In most cases, this can even be achieved using standard ed inserts. Pullout strength Screw. Screw. Pullout strength Pullout strength against head Screw. Overtorque Pullout torque Pullout torque against head Screw., DIN washer Screw., DIN washer, hardened steel Screw., DIN washer, hardened steel bar Overtorque Tension loading, exterior screw. Pullout torque Nm Retaining hole ø +0, Screw. DIN Workpiece Steel bar hardened secured against turning 3

6 The nsat selftapping ed insert... nsat is a selftapping ed insert with external and internal, cutting slots or cutting bores. continuous process of further development has brought about a number of major improvements to product characteristics. These inserts are protected by German and also foreign patents. nsat S 30 (with cutting slot) is recommended for most application cases. In certain materials, this nsat demonstrates a minimal inward springing action, so creating a certain screw locking effect. If this effect is not required, we recommend using nsats 30/30. nsat S 30/30 (with cutting bores) was developed for materials with difficult cutting properties. This insert has a thick wall and the cutting force is distributed over three cutting edges. The short version nsat 30 is particularly suitable where minimal material thicknesses are involved. Thinwalled nsat for applications involving special space conditions (residual wall thicknesses), and also suitable for driving using a tapping machine (same internal and external pitch). Slot version: 303 Threehole version: 34/34 (see page). nsat SS 33/33 with three chip reservoirs. Used primarily wherever no chips may be permitted to occur during the tapping process (see page 3). nsat ST with closed floor for additional sealing from below. 3/3. Dimensions: see 33/33 (page 3). Fields of application The nsat is used throughout the whole of the metal and plastics processing industry. utomotive industry, passenger and commercial vehicles ngines, transmissions, wide range of supply parts such as wing mirrors, radiators, bumpers etc. Plant and equipment construction Flange joints, construction equipment, oil burners etc. Household appliance and office machinery production Vacuum cleaners, cameras, sun lamps, drills etc. lectrical and laboratory supplies Capacitors, heavy current, radio and telecommunication systems, dental technology equipment. Military applications Tanks, aircraft etc. Product features The nsat has a large effective shearing surface ( π ), so ensuring a higher degree of pullout strength, i.e. an nsat M4 is often sufficient instead of a cut M (see page ). The nsat is driven subsequently into the finished workpiece. This means a higher casting machine output, no rejects due to incorrectly castin insert components, no moulding sand trapped in the. precast or predrilled retaining hole with normal tolerance requirements is sufficient for driving in the nsat. The is always precisely positioned. The work steps required with wire inserts tapping, breaking off trunnions etc. as well as costly wearing tools (special drills, limit plug gauges etc.) are not needed with the nsatsystem. The nsat is insensitive to small areas of shrinkage. The nsa system prevents damage caused by torn s. 4

7 technologies for a reliable hold The nsat pullout resistance due to flange cover... Connections using nsat ed inserts permit substantially smaller overall dimensions and thus pave the way for materialsaving and weightsaving designs M M The illustration below shows two screw connections with equal pullout strength. Test load P[N] M % Flange cover of the external [%] nsat Workpiece nsat Workpiece Flange cover In a workpiece made of a light alloy, the nsat 30 achieves almost maximum pullout strength with only 30 % flange cover orehole diameter 30 % flange cover Workpiece G l Si (Cu) orehole diameter 0 % flange cover Pullout strength The nsat is capable of withstanding high loads. When used in light alloys, for example, a degree of pullout strength is achieved which far exceeds the yield strength of the mating screw nsat SMn Pb K Casehardened and galvanised steel (30) (30) Yield strength of a screw Pullout resistance [N] M 3 M 4 M M M M M M NSTinternal

8 The nsat in the workpiece... Installation recommendation void any tilting between the nsat and the screw under the head or in the. For this reason, in the case of adjusting screws the nsat is driven in to a depth of >= mm. Studs are countersunk to the floor surface of the blind hole (see illustration). orehole diameter [mm] Standard values for NST 30 Workpiece material Light alloys Rm=tensile strenght [N/mm ] R m < 0 R m < 300 R m < 30 NST internal Flange cover approx. Ms, bronze, NFmetall Cast iron H = brinell hardness [N/mm ] M/M, M3 M3, M4 M M(a) M M M M M M M M0/ M4 M M30 Zoll N 4 N N N /4 / 3/ / / / 3/4 < H < 00 H >00 H 4, 4, 4,3 4, 4, 4,,4,,,,,0,,,,3,,,,3,,,,0,,4,,0,,4, 3,0 3, 3,4,,0,,4,,0,,4,,0,,4 0,,0,,4 4,,0,,4,,0,,4 3, 33,0 33, 33,4 34, 3,0 3, 3,4 Standard values for NST 30/ /33 R m < 300 R m >30 R m >30 4,,,0,4,3, 3,,0,0,0 < H Recommended borehole diameter for easy assembly. Other diameters may require lubrication. These specifications are only recommendations and apply to NST made of steel, hardened and plated. R m < 30 < 00 H 4,,,,,4, 3,,,,,,,3 3,3,,, >00 H 4,,,,,, 3,,4,4,4 0% 0% 40% 30% 0% 0% 0% 0% The adjacent table is used to determine the recommended bore hole diameter depending on the material of the workpiece and the nsat type/dimension. xample: Light alloy workpiece (Rm=0 N/mm), Internal M, recommended bore hole diameter for nsats 30:. to.4 mm nsats 30/30:. to. mm In case of processing problems (e.g. markedly increased screwin torque levels) there is generally no harm in selecting diameter data in the next highest column. In case of doubt, we advise carrying out a test. Retaining hole The retaining hole can be simply drilled or already provided for in the casting. It is generally not necessary to countersink the hole. However, we do recommend that you take care not to warp the workpiece surface when screwing in the nsat. Material thickness: Length of the nsat = smallest admissible material thickness M. Depth of the blind hole: Minimum depth T see sheets, page to 0. orehole diameter: rittle, tough and hard materials call for a larger borehole than soft or elastic materials. For guideline values, see the table above. dge distance: The smallest still admissible edge distance depends on the planned stress level and the elasticity of the material into which the nsat is screwed. M 0 Guideline values for light alloys: W 0. to 0. Guideline values for cast iron: W 0.3 to 0. = Outside diameter of the nsat [mm] W T

9 technologies for a reliable hold Threaded insert selftapping metric inner nsat S 30 pplication P The ed insert with cutting slot is a selftapping fastener for the creation of wearfree, vibration resistant screw joints with high loading capacity in materials with low shearing strength. It is suitable for installation in the following materials: Light alloys Cast iron, brass, bronze NF metals Plastics, laminates Hardwoods Minimum borehole depth for blind holes rticle no. Internal xternal Length P T M M, M 3 M 3, M 4 M M (a) M M M M M M M M 0 M M 4 M M 30 4, 4,, , 0, 0, 0, 0,,,,,,,,,,,,, xample for finding Selftapping ed insert nsats of series 30 with internal = M made of steel, the article number hardened, zincplated and yellow chromated: nsats Materials Unhardened steel rticle no Casehardened steel, zincplated, yellow chromated rticle no rass rticle no Rustproof steel.4 rticle no Rustproof steel.430 rticle no Other materials, designs and finishes on request. Tolerances ISO m Thread Internal : as per ISO H xternal : metric, Tolerances in accordance with Internal UNC, UNF, Whitworth or fine s see page. For details of bore diameter guideline values, see the table on page Please note M / M. are only suitable for lowstrength materials, as the shear resistance of studs in the driving tools may be insufficient. KerbKonusVertriebsGmbH P.O.ox 3 D0 mberg Phone +4 0 Fax

10 Threaded insert selftapping imperial nsat S 30 pplication P Threaded insert with cutting slot and internal Whitworth, UNC or UNF. Minimum borehole depth for blind holes rticle no. Internal inch xternal mm Length mm P Whitworth.S.4 Internal Tolerance: medium /4 / 3/ / / / /4 0 / 3/ / / 3 / /4 / 4 3/ 4 / 0 / 0 / 0, 0, 0,,,,,, 0, 0, 0,,,,,,, 0, 0, 0,,,,,,, T 3 3 UNC Unified Coarse Thread NSI./S Internal Tolerance UNF Unified Fine Thread NSI./ Internal Tolerance xample for finding Selftapping ed insert nsats from series 30 with internal UNF /4 the article number made of hardened, zincplated and yellow chromated steel: nsats Materials Unhardened steel rticle no Casehardened steel, zincplated, yellow chromated rticle no rass rticle no Rustproof steel.4 rticle no Rustproof steel.430 rticle no Other materials, designs and finishes on request. Tolerances ISO m Thread xternal : metric, tolerances in accordance with KerbKonusVertriebsGmbH P.O.ox 3 D0 mberg Phone +4 0 Fax

11 technologies for a reliable hold Threaded insert selftapping nsat SK 30 pplication P Threaded insert nsatsk 30 with cutting slot and head is a selftapping fastener for the creation of wearfree, vibrationresistant screw joints with high loading capacity in materials with low shearing strength. It is suitable for installation in the following materials: Light alloys Cast iron, brass, bronze, NF metals Plastics, laminates Hardwoods. The head serves as a support for electrical contacts, for simultaneous fixture of several parts; when stress is applied against the head, the pullthrough force is significantly increased. K rticle no Internal M 4 M M M M xternal Head Head height Length Minimum borehole diameter depth for blind holes P K T, 0,,,, 3,,,,,, 0 xample for finding Selftapping ed insert nsatsk with head from series 30 with internal = M the article number made of hardened, zincplated and yellow chromated steel: nsatsk Materials Unhardened steel rticle no Casehardened steel, zincplated, yellow chromated rticle no rass rticle no Other materials, designs and finishes on request. Tolerances ISO m Thread Internal : as per ISO H xternal : metric, tolerances in accordance with Internal UNC, UNF, Whitworth or fine on request For details of bore diameter guideline values, see the table on page KerbKonusVertriebsGmbH P.O.ox 3 D0 mberg Phone +4 0 Fax

12 Threaded insert selftapping nsat S 30 and 30 pplication Threaded insert nsats with cutting bores is a selftapping fastener for the creation of wearfree, vibration resistant screw joints with high loading capacity in materials with low shearing strength. rticle no It is suitable for installation in the following materials: luminium and aluminium alloys Magnesium alloys Duroplastics, thermoplastics (with the exception of rubbersoft thermoplastics < 0 Shore ) Internal P M 3 0, 4 M 3, 0, M 4, 0, M M, M, M, M, M 4 M 0 4 P xternal Length Minimum borehole depth for blind holes T 3 3 xample for finding Selftapping ed insert nsats from series 30 with internal = M the article number made of hardened, zincplated and yellow chromated steel: nsats Short design 30 Long design 30 Materials Unhardened steel rticle no Casehardened steel, zincplated, yellow chromated rticle no Rustproof steel.4 rticle no Rustproof steel.430 rticle no rass rticle no Other materials, designs and finishes on request. Tolerances ISO m Thread xternal Internal : as per ISO H Special with flattened root, tolerances in accordance with Internal UNC, UNF, Whitworth or fine on request For details of bore diameter guideline values, see the table on page Special applications For chipsensitive applications (e.g. electronic appliances): lso available with 3 closed cutting bores serving as chip reservoirs. 33 / 33 Page 3 KerbKonusVertriebsGmbH P.O.ox 3 D0 mberg Phone +4 0 Fax

13 technologies for a reliable hold Threaded insert selftapping nsat SK 30 and 30 pplication Threaded insert nsatsk with bores is a selftapping fastener for the creation of wearfree, vibration resistant screw joints with high loading capacity in materials with low shearing strength. rticle no It is suitable for installation in the following materials: luminium and aluminium alloys Magnesium alloys Duroplastics, thermoplastics (with the exception of rubbersoft thermoplastics < 0 Shore ) The head serves as a support for electrical contacts, for simultaneous fixture of several parts; when stress is applied against the head, the pullthrough force is significantly increased. xternal Head Head height Length Minimum borehole diameter depth for blind holes P K T Internal M M M M,,, xample for finding Selftapping ed insert nsatsk from series 30 with internal the article number = M made of hardened, zincplated and yellow chromated steel: nsatsk Short design 30 Long design 30 Materials Unhardened steel rticle no Casehardened steel, zincplated, yellow chromated rticle no rass rticle no Other materials, designs and finishes on request. Tolerances ISO m 3,,,, 3,,,,, K P 3 3 Thread Internal : as per ISO H xternal : Special with flattened root, tolerances in accordance with Internal UNC, UNF, Whitworth or fine on request For details of bore diameter guideline values, see the table on page Special applications For chipsensitive applications (such as electronic appliances): lso available with three closed cutting bores serving as chip reservoirs. 33 / 33. xample: nsat with head and closed cutting bores, internal M, length. mm, casehardened, zincplated, yellow chromated steel = nsatssk KerbKonusVertriebsGmbH P.O.ox 3 D0 mberg Phone +4 0 Fax

14 Threaded insert selftapping with safety groove nsat SN 3 and 3 pplication This special ed insert is used to absorb extreme torsional and vibration stress. The antirotation function is achieved by means of a parallel notched stud to DIN 3 (predrill with diameter 3, depth = 3+mm). P 3 3 rticle no. Internal xternal Special Length P Minimum borehole depth for blind holes T Notched stud M 4 M M M M M M M, 0 0,,,,, xample for finding Selftapping ed insert nsatsn from series 3 with safety groove and internal the article number = M made of hardened, zincplated and yellow chromated steel: nsatsn Short design 3 Long design 3 Materials Casehardened steel, zincplated, yellow chromated rticle no On request: Unhardened steel rticle no Rustproof material.4 rticle no Rustproof material.430 rticle no rass rticle no Other materials, designs and finishes on request. Tolerances ISO m Material of the notched stud: Steel. to DIN, zincplated. Thread Internal : as per ISO H xternal : Special with flattened root, tolerances in accordance with Internal UNC, UNF, Whitworth or fine on request. For details of bore diameter guideline values, see the table on page KerbKonusVertriebsGmbH P.O.ox 3 D0 mberg Phone +4 0 Fax

15 technologies for a reliable hold Threaded insert selftapping with chip reservoirs nsat SS 33 and 33 pplication This special nsat was developed primarily for applications in which chips created by the selftapping process exert a detrimental effect and could cause serious damage or failure during subsequent operation of the installed assembly for example in electronic equipment. The three cutting bores distributed around the periphery are formed as chip reservoirs. The chips created during the installation process are stored in these reservoirs and cannot drop into sensitive equipment components. P rticle no Internal xternal Special Length P M 3 M 3, M 4 M M M M M M M, 0 0, 0, 0,,,,, Minimum borehole depth for blind holes T 3 3 xample for finding Selftapping ed insert nsatss with chip reservoirs, from series 33, = mm, the article number with internal = M made of rustproof material.4: nsats Short design 33 Long design 33 Materials Unhardened steel rticle no Casehardened steel, zincplated, yellow chromated rticle no Rustproof steel.4 rticle no Rustproof steel.430 rticle no rass rticle no Other materials, designs and finishes on request. Tolerances ISO m Thread ore diameter Internal : as per ISO H xternal : Special with flattened root, tolerances in accordance with Internal UNC, UNF, Whitworth or fine on request. Due to the limited capacity volume of the chip reservoirs, select the largest bore diameter. For details of bore diameter guideline values, see the table on page Special versions For closed and sealed applications, available with chip reservoirs and closed floor (tank version from M4); 3 / 3. Or with head from M: nsatssk, 33 / 33. KerbKonusVertriebsGmbH P.O.ox 3 D0 mberg Phone +4 0 Fax

16 Thinwalled ed insert selftapping nsat SD 303 pplication Threaded insert nsat with cutting slot or three cutting bores in a special thinwalled and shortened version. Particularly suitable for plastic with thin residual walls and for lightweight constructions. rticle no Internal M 3 M 3, M 4 M M M M These versions are designed primarily for processing on tapping machines, as the pitch of the outside and inside is identical. For processing thinwalled inserts in metal, the tensile strength / hardness of the base material is always the determining factor. In critical cases, we recommend lubricating with suitable media in order to prevent fracture of the thinwalled inserts. xample for finding Selftapping thinwalled insert nsatsd slot from series 303 with internal = M made the article number of hardened, zincplated and yellow chromated steel: nsatsd Materials, tolerances,, see 30, Page and xternal Length Location hole diameter, nonductile Minimum borehole alloys, NF metals depth for blind holes 4, P L T 0, 0, 0, 0,,0,, 4, bis 4,3 4, bis 4,, bis,, bis,, bis,, bis,4, bis,4 P 3 Thinwalled ed insert selftapping, with cutting bores nsat SD 34/34 pplication Threaded insert nsat with three cutting slots in a special thinwalled or shortened version. Particularly suitable for plastic with thin residual walls and for lightweight constructions. This version is designed primarily for processing on tapping rticle no Internal M 3, M 4 M M M M M M M machines, as the pitches of the external and internal s are identical. For processing thinwalled inserts in metal, the tensile strength / hardness of the base material is always the determining factor. In critical cases we recommend lubricating xternal, P 0, 0, 0,,,, Short design 34 Long design 34 Materials, tolerances, see 30/30, Page with suitable media in order to prevent fracture of the thinwalled inserts Length Factory standard 4, bis 4,, bis,, bis,, bis,,4 bis,, bis, 3, bis 3,, bis,4, bis,4 KerbKonusVertriebsGmbH P.O.ox 3 D0 mberg Phone +4 0 Fax Location hole diameter, nonductile alloys, NF metals 34 L 4 4 P Minimum borehole depth for blind holes Factory standard 3 3

17 technologies for a reliable hold Threaded insert selftapping with hexagonal socket nsat SI/SI 30 / 30 and 30 pplication nsat SI 30 nsat SI 30 / 30 P This ed insert with hexagonal socket is a selftapping fastener for the creation of lowwear, vibration resistant screw joints with high load capacity in materials with low shearing strength. The nsat is inserted via the hexagonal socket, permitting the achievement of short installation times. Other benefits: More simple driving tools and machines which require only clockwise rotation. When using in plastics, the nsat can be extracted without problems before the recycling process, resulting in lower costs. It is suitable for installation in the following materials: luminium and aluminium alloys Magnesium alloys Duroplastics, thermoplastics (with the exception of rubbersoft thermoplastics < 0 Shore ) SW rticle no. Internal Special external Length Hexagonal socket Minimum drill hole depth in case of blind holes Minimum wall Thickness P M 4, 0, 0, M, M,, M,, M,, M, SW +0, 3, 3, 4, 4, 4, 4,,,,3,3,, T 3 3 M xample for finding Selftapping ed insert nsatsi from series 30 with internal = M the article number made of hardened, zincplated, yellow chromated steel: nsatsi Materials Casehardened steel, zincplated, yellow chromated rticle no rass rticle no Other materials on request. Tolerance ISO m Thread Internal : as per ISO H xternal : Special with flattened root, tolerance in accordance with For details of bore diameter guideline values, see the table on page KerbKonusVertriebsGmbH P.O.ox 3 D0 mberg Phone +4 0 Fax

18 Mubux Z pressin ed inserts MubuxZ is a pressin ed insert made of hardened and zincplated steel with helical annular gear around the outside. pplication range For screw fasteners in cast components made of NF metal primarily light alloy, for through holes and blind holes. Mounting MubuxZ is simply pressed into a normal borehole. The retaining hole is drilled or provided for during the casting processes. MubuxZ is inserted with the guiding shoulder pointing downwards into the borehole. The press die should be smooth (if applicable polished) in order not to impede the rotary movement of the MubuxZ during the pressin process. Product features Wearresistant, rustproof with sufficient pullout strength. Fast, simple pressin without the use of special tools and without the need for a " tapping" process Pressin ed insert Mubux Z 0 pplication For the creation of wearresistant screw joints with high load capability in cast alloy components. Suitable for through holes and blind holes..3 W L rticle Internal xternalø Length recommended Distance fromedge no. retaining hole ) ) L W M 4,,,, M,,,,4 ) Reference values only. Trials on the resp. materials are recommended. xample for finding Pressin ed insert MubuxZ with internal = M4 made of hardened, zincplated and the article number yellow chromated steel: MubuxZ Material Thread Tolerances Hardened, zincplated, yellow chromated steel Internal : ISO H ISO m KerbKonusVertriebsGmbH P.O.ox 3 D0 mberg Phone +4 0 Fax

19 technologies for a reliable hold Mubux MO the coated ed insert... Threaded insert MubuxMO is made of zincplated steel, with internal and external s. It is coated on the outside with precote 0. pplication range MubuxMO is used wherever a vibrationfree firm fit and extremely good sealing properties are required in addition to a high load capacity and wear resistance. It is suitable for a wide range of different materials from plastic to steel, for minimal wall thicknesses and extremely brittle materials. Product features Low installation costs Simple installation without the need for costly special tools xchange of ed inserts without tool damage Installation. Drill the retaining hole.. Tap the with a standard tap. 3. Screw in the MO with simple tools; either manually, semiautomatically or fully automatic. ll nsat driving tools and machines can also be used for MubuxMO. Installing under pretension increases the breakaway torque. Important: The parts must be free of oil and grease prior to installation. precote 0 coating precote 0 is a microcapsule acrylicbased precoating. When screwed into a nut, the capsules break open and the plastic flux begins to harden. This creates a firm, watertight joint. Handtight after approx. 0 minutes, full loading capability after three hours. Other coating variants for screw lokking and sealing are described in more detail in our publication no. 0.

20 Threaded insert coated with precote 0 microcapsules recommended lengths Mubux MO 0 pplication precote 0 coated For the creation of wearresistant screw joints with good load capability in light alloy castings. Suitable for through holes and blind holes rticle no. first group of digits Length ) rticle no. Internal xternal Standard length ) second and third group of digits,, M 3 M 4,, M 4 M M M,,, M M M M M M M M ) Tolerance ±0, mm xample for finding Threaded insert MubuxMO with internal = M, length = mm, made of zincplated and the article number yellow chromated steel and coated with microcapsulebased adhesive precote 0: MubuxMO Material Zincplated and yellow chromated steel; coated with precote 0 rticle no Zincplated and yellow chromated steel; without coating rticle no Other materials on request. Thread Internal : ISO H xternal : capable of being screwed into a standard. Coating Microcapsule precoating on an acrylic basis precote 0, maximum storage capability 4 years at room temperature. Recommended length Workpiece shear strength N/mm Tensile strength of screw (DIN) /.. M 3 M 4,,,,,,,,,, xample Shearing strength of the workpiece appr. N/mm, screw M, strength class. Recommended length: = x mm = mm. Recommended length M M /M /M M,,,,,,,,,,,, KerbKonusVertriebsGmbH P.O.ox 3 D0 mberg Phone +4 0 Fax

21 technologies for a reliable hold Thread repair with nsat and Gripp nsat is ideally suited for the fast repair of torn and damaged s. The same screw size can be used again. This gives s a markedly higher load capacity. Gripp is used for the repair of torn spark plug retaining s in light alloy cylinder heads. Gripp is installed in the same way as nsat, but screwed in deeper until the upper rim comes to rest around. mm under the surface of the cylinder head. The sealing ring of the spark plug is then able to work effectively. Minipacks for minor repair requirements are available from tool retailers or from the manufacturer. The basic nsat kit The basic kit contains 3 selftapping ed inserts nsats 30 made of casehardened, zincplated, yellow chromated steel with internal from M. to M. The nsat installation kit. The installation kit contains 0 selftapping ed inserts nsats 30 made of casehardened, zincplated, yellow chromated steel with internal from M4 to M and the tools required for manual installation (for a more detailed description see page ). The Gripp kit The Gripp kit was put together specifically for the repair of torn and damaged spark plug retaining s and comes complete with tools for manual installation in two sizes: Standard: M long and short Universal: additionally M

22 Spark plug ed insert selftapping Gripp 304 pplication P The nsatgripp ed insert with cutting bores is a selftapping fastener for the repair of torn and damaged spark plug retaining s in cylinder heads. The nsatgripp is designed to enhance the pullout strength of the. rticle no Internal P,,,,,, xternal special,,, Length DIN P L ) Guideline values for normal applications. Deviations, depending on the strength of the cylinder head alloy, ± 0. mm Hole sizediameter ),0,0,0 xample for finding Spark plug insert with internal = M x, mm, length = mm made of casehardened steel, the article number zincplated, yellow chromated: nsatgripp Material Hardened, zincplated, yellow chromated steel Installation tools for Gripp installation / Installation tool for manual installation rticle no Suitable for Gripp Tool SW D Length Installation tool for machine installation rticle no. 000 Suitable for Gripp Maximal diameter 0 Length square flat KerbKonusVertriebsGmbH P.O.ox 3 D0 mberg Phone +4 0 Fax

23 technologies for a reliable hold The correct length of the stud for the nsat with cutting slot / cutting bore results from the pitch of the outside (see also illustration below; P=pitch of the outside ). nsat driving tools... Tool 0 for flush installation Tool For deep retaining holes Tool for manual installation Tool for nsatsi Square flat Shaft 4 Pin 4 square flat F G all Locking screw, colour marking all bearing Shell hex nut 3 Guide bush 3 Stud Set or exchange the stud Pull off the shell () downwards off the shaft (). Release the locking screw (). Screw the stud () in or out. The yellow colour marking indicates the flattened surfaces for the locking screws. When assembling, tighten both screws () evenly. Insert the ball bearing (). Push on the shell () until the ball stop locks into place. To ensure that the tool functions perfectly, it must be possible to easily rotate the shell. For short nsats, grind down tool accordingly. If you wish the nsat to be driven deeper than 0. mm below the workpiece surface, screw off the guide bush (3) at the front. Diameter. 0. to 0. mm smaller than the nsat retaining hole. For mounting the thinwalled nsat (Page ), modified guide bushes (available on request) should be used. Dimensions [mm] For nsat Tool 0 rticleno. Whitworth UNC UNF Square SW D Length Tool rticleno. Manual assembly tool rticleno. Length Square Collar SW SW D D For nsat SI Tool Machine/Hand rticleno. Length Square SW G Shank Ø F M, M 3 M 3, M 4 Nr. 4 Nr. Nr ,3,3,3, M, M 3 M 3, M , M M M Nr. /4 / ,,, M M M , M M 3/ / ,, ,, M M 00 0 M M M / / , M M M M 0 M M 0 M M 4 M M M 4 M M 30 Tools 0 and also fit within the coloured lines for other dimensions, if the guide bush and stud are exchanged.

24 Manual nsat Installation... Manual installation with driving tool and tap wrench: Manual installation Driving into steel mergency installation using screw and nut: Manual driving takes place using the driving tools 0, or and a tap wrench:. Drill the hole: see page for the correct diameter, countersink if necessary.. Screw the nsat onto the driving tool with the cutting slot or cutting bore pointing downwards. 3. Drive in the nsat until appr mm below the surface of the workpiece. nsure that it does not tilt! When using tool 0 and, the rotatable shell must rest against the externally visible stop pins in such a way that it is driven round clockwise by the pins. With nsat 30: Precut the using the drill (max. centre cutter), set the ed stud of the tool to the full nsat length (tool cannot be adjusted). With nsat 30 / 30: In steel up to medium strength, precutting is not required. Up to M, we recommend the use of Mubux M for steel. Mubux MO installation Precut the retaining with customary tapping tool, then drive in as for the nsat. 4. ack out the driver tool. During this process, tool 0 or is automatically released from the nsat. Tool : Hold the hex nut using a spanner until the lock breaks.

25 technologies for a reliable hold Machine installation... Machine driving process. Precisely position the workpiece to ensure that the hole and machine spindle are in exact alignment (do not tilt). Set the machine to the precise driving depth (appr mm below the surface of the workpiece).. Turn the machine to clockwise rotation. t the start of the driving process, the rotatable external shell of the tool must be resting against the external visible stop pins in such a way that it is driven by the pins in the clockwise direction. 3. Feed the nsat towards the tool (slot or cutting hole facing down wards) and grip for the duration of to 4 revolutions. 4. ctuate the operating lever of the machine until the nsat cuts into the borehole. The remainder of the driving process takes place without actuating the feed. Machine installation takes place with production tool 0 or, integrated in a:. Thread tapping machine. Use a drill press fitted with a reversing tapping attachement or a tapping machine which is not pitch controlled. Important: Never exceed the maximum admissible driving torque. 3. Special manual machine with bit stop and reversing system. 4. For largescale series: Single or multiple installation machines with pneumatic or electric drive, semi or fully automatic, CNC. Recommended speed values for light alloys: nsat Speed Internal [min ] M, / M M 4 / M M / M M / M M / M 00 M / M 0 00 M / M 4 0 M / M Torque M The maximum admissible torque depends on:. The axial load capacity of the tool stud. The pressure resistance capacity of the nsat in the axial direction. Maximum admissible installation torque nsat M,, Nm nsat M 3, Nm nsat M 4, Nm nsat M Nm nsat M Nm nsat M Nm nsat M 40 Nm nsat M 0 Nm Lubrication Only in the case of materials with difficult cutting properties. For mediumhard light alloys: Cutting oil, spirit or petroleum. For tough light alloys and cast iron: Cutting oil with appr. % molybdenum sulphide.. Switch on the reversing function. lways avoid setting the tool down hard on the workpiece, as this can lead to breaking both the tool and the nsat. xcessively hard contact of the tool can damage the playfree fit of the nsat and so reduce the pullout strength. If necessary, the driving speed may have to be adapted in line with the necessary reversal time. 3

26 ... technologies for a reliable hold KerbKonus close to its customers. round the world. cross every sector of industry. First and foremost, for you customer proximity means a rapid response to your requirements and the fast, efficient realisation of the right fastening solution for you. For us, customer proximity is far more than just another watchword it is an important strategic instrument. Our technical sales consultants are available locally to talk to you around the world, ready to offer sound advice when it comes to the reliable, economical application of modern fastening technology. dvisory activities are coordinated through the headquarters in mberg. Why not simply call us to arrange an appointment? KerbKonusVertriebsGmbH P.O.ox 3 D0 mberg Phone Fax KKVmberg@kerbkonus.de internet in Germany mberg Headquarters Production and Sales KerbKonusVertriebsGmbH WernhervonraunStraße D4 mberg... and around the world. KerbKonus Fasteners Pvt. ltd. Kolhapur/India KerbKonus UK Telford/Shropshire UK KKV Corp. Kerb Konus spanola S.. Osaka/Japan lcorcon/madrid Spain KKV G Sattel/Switzerland Precision Fasteners Inc. Flanders, New Jersey/US KerbKonus Italia s.r.l. Mulazzano/Italy Production plant Hadamar KKV elgium Gooik/elgium Sofrafix SavignyleTemple France Other foreign agents in a wide number of countries. ddresses on request or under This publication is not subject to the updating service / Publication no. 0.