NTERNATONAL STANDARD SO 401 4 Third edition 1999-09-01 Vis a f&e hexagonale partiellement filetees - Grades A er B Reference number SO 4014:1999(E)
SO 401 4:1999(E) Foreword SO (the nternational Organization for Standardization) is a worldwide federation of national Standards bodies (SO member bodies). The workof preparingnternationalstandardsisnormally carried outthroughsotechnical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. nternational organizations, governmental and non-governmental, in liaison with SO, also take part in the work. SO collaborates closely with the nternational Electrotechnical Commission (EC) on alt matters of electrotechnical standardization. nternational Standards are drafted in accordance with the rules given in the SO/EC Directives, Part 3. Draft nternational Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an nternational Standard requires approval by at least 75 % of the member bodies Casting a vote. nternational Standard SO 4014 was prepared by Technical Committee SO/TC 2, Fasteners. This third edition cancels and replaces the second edition (SO 4014:1988) which has been technically revised. a 0 SO 1999 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. nternational Organization for Standardization Case postale 56 CH-1211 Geneve 20 Switzerland lnternet iso9iso.ch Printed in Switzerland
0 SO SO 401 4: 1 999( E) lntroduction This nternational Standard is part of the complete SO product Standard series on external hexagon drive fasteners. The series comprises: a) hexagon head bolts (SO 4014 to SO 4016 and SO 8765); b) hexagon head screws (SO 4017, SO 4018 and SO 8676); C) hexagon nuts (SO 4032 to SO 4036, SO 8673 to SO 8675); d) hexagon bolts with flange (SO 4162 and SO 15071); e) hexagon nuts with flange (SO 4161 and SO 10663); 0 f ) structural bolts and nuts (SO 4775, SO 7411 to SO 7414 and SO 7417).... 111
NTERNATONAL STANDARD o SO SO 4014:1999(E) Hexagon head bolts - Product grades A and B m 1 Scope This nternational Standard specifies the characteristics of hexagon head bolts with threads from M1,6 up to and including M64, of product grade A for threads M1,6 to M24 and nominal lengths up to and including 10 d or 150 mm, whichever is shorter and product grade B for threads over M24 or nominal lengths over 10 d or 150 mm, whichever is shorter. f, in Special cases, specifications other than those listed in this nternational Standard are required, they should be selected from existina nternational Standards, for example SO 724, SO 888, SO 898-1, SO 965-1, SO 3506-1, SO 4753 and SO 4759-1. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this nternational Standard. For dated references, subsequent amendments to, orevisions of, any of these publications do not apply. However, parties to agreements based on this nternational Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of SO and EC maintain registers of currently valid nternational Standards. SO 2231983, Fasteners - Bolts, screws, studs and nuts - Symbols and designations of dimensions. SO 724: 1993, /SO general-purpose metric screw threads - Basic dimensions. SO 888:1976, Bolts, screws and studs - Nominal lengths, and thread lengths for general purpose bolts. SO 898-1: 1999, Mechanical properties of fasteners made of carbon steel and alloy steel- Part 1: Bolts, screws and studs. SO 965-1 : 1 998, SO general purpose metric screw threads - Tolerances - Part 1: Principles and basic data. SO 3269:- ), Fasteners - Acceptance inspection. SO 3506-1:1997, Mechanicalproperties of corrosion-resistant stainless-steel fasteners - Part 1: Bolts, screws and studs. SO 401 7:1999, Hexagon head screws - Product grades A and B. SO 4042:1999, Fasteners - Electroplated coatings. SO 4753:3), Fasteners - Ends of parts with external metric SO thread. ) To be published. (Revision of SO 3269:1988) *) To be published. (Revisioin of SO 4753:1983) 1
SO 401 4:1999(E) 0 SO SO 4759-1 :-3), Tolerances for fasteners - Part 1: Bolts, screws, studs and nuts - Product grades A, B and C. SO 61 57-1 :1988, Fasteners - Sutface discontinuities - Part 1: Bolts, screws and studs for general requirements. SO 8839:1986, Mechanicalpropetties of fasteners - Bolts, screws, studs and nuts made of non-ferrous metals. SO 8992:1986, Fasteners - General requirements for bolts, screws, studs and nuts. SO 10683:-4), Fasteners - Non-electrolytically applied zinc flake coatings. 3 Dimensions See Figure 1 and Tables 1 and 2 Symbols and description of dimensions are defined in SO 225. 3) To be published. (Revision of SO 4759-1:1978) 4) To be published. 2
0 SO SO 4014: 999( 1 E) Dimensions in millimetres X X P= 15" to 30" 0 Point shall be chamfered or for threads = M4 may be as-rolled (sheared end) (See SO 4753) lncomplete thread U s 2P Referee datum for d, Maximum underhead fillet Figure 1 3
Table 1 - Preferred threads Dimensions in millimetres Thread (d) M1,6 M2 M2,5 M3 M4 M5 M6 M8 M10 P 0,35 04 0,45 03 0,7 0,8 1 1,25 1,s b 9 10 14 11 1226 22 16 18 b 20 ref. 18 C 17 15 16 22 32 24 28 29 d 28 30 31 33 35 37 41 45 0,40 C 0,25 0,25 max. 0,25 0940 0,50 OS0 0.60 0.60 0,lO min. 0,lO 0,lO 0,15 0,15 0.1 0,15 5 0,15 0,15 da 2,6 max. 2 31 5.7 3,6 4.7 92 63 11,2 ds nom. = max. 1,60 2m 2,50 3300 4,oo 5,00 600 8,00 10,oo Product A min. 1,46 136 2,86 2936 3,82 4,82 5,82 7,78-9,78 grade B 19% 2,75 1,75 5.702,25 4,70 3.70 764 9,W Product * mim 2,27 3,07 4,07 457 5,88 6,88 8.88 11 63 14
Prcduct grade A B 1, and lg fg r nom. 12 16 20 11,6!5 15,6!5 19,58 g g, 12,35 16.35 20,42 min. max. min. max. min. - - - - 18,951 21,05 g 6 10 s g min. max. 2,75 5 6,75 s g min. max. s min. g max. s rnin. g s g min. max. i i i i i i i i i For sizes above the solid, boldface stepped line SO 4017 is recommended 5 lg 4 g rnin. max. min. max. 25 30 24,58 29.58 25,42 23.95 26,05 28,95 30,42 31,05 L-------l ----- 11,75 35 343 355 33,75 36,25 40 39.5 403 38,75 41,251 45 443 455 43,75 46,25 50 49,5 503 48,75 51,25 55 54,4 60 59,4 65 64,4 70 69,4 80 90 79.4 89.3 100 99.3 110 109,3 120 119,3 55,6 533 563 58,5 60,6 61,5 656 633 66,5 70,6 603 715 80,6 90,7 110,7 120,7 785 813 88,25 91,75 98.25 100,7 101,75 108,25 111,75 1 18,25 121,75
P 0 Table 1 (continued) Dimensions in millimetres (D (D (D n m W
SO 401 4: 1 999( E) -mil E -4 E
SO 401 4:1999(E) 0 SO Table 2 - Non-preferred threads Dimensions in rnillirnetres,25 90,7 89,3 90 ' ' 40 27,5 48 35,5 56 46 100 101,75 99398,25100,7 50 37,5 58 45,5 66 56 40 25 108,25,75 110.7109,3 110 60 4?,5 68 66 55,5 76 35 50 120 119,3 120,7 118,25 121,75 76 86 65,5 78 57,5 70 45 60 130 129,2 130,8 128 132 80 90 69.5 82 61,5 74 49 64 140 139.2 140,8 138 142! 90 100 79,5 92 71,5 84! 59 74 --------- 152 149,2 150,8 148-89,5102 --------- 99,5 160-162 - 158 119,5 180-182 - 178 202,3!OO - - 197,7 222,3!20 - - 217,7!40 - - 237,7!60 - - 257,4 81,5 94-1 6984 8
Thread (4 M33 M39 M60 M45 M52 Pa 3,5 4 4,5 5 575 b ref b 325 wo 302,5-443,15-436,85 306 160 463,15 - - 456,85 326 80 483,15 - - 476,85 ioo - - 496,85 NOTE Popularlengthsaredefinedin tens of ls and lg: - for product grade A. above the dashed, stepped line; - for product grade B, below this stepped line. P is the pitch of the thread. kw, min = 0.7 kmn For lengths lnom G 125 mm. 9, max = lnom -b lengths For 125 mm <, s 200 mm. L, min = lg. max - 5P lengths For, > 200 mm. length. minimum grip $, is the 9
~ EXAMPLE SO 401 4:1999(E) 0 SO 4 Specifications and reference Standards See Table 3. Material General nternational requirements Standard Thread Tolerance nternational Standards Mechanical Property properties ClaSSa Tolerances nternational Standards Product grade nternational Standard Table 3 - Specifications and reference Standards -~ Steel Stainless steel SO 8992 6g SO 724, SO 965-1 d < 3 mm: as agreed d s 24 mm: A2-70, A4-70 3mmsds39mm: 24mm d s 39 mm: 5.6, 8.8, 9.8, 10.9 A2-50, A4-50 d > 39 mm: as agreed d > 39 mm: as agreed 3mmsds39mm: d s 39 mm: SO 3506-1 SO 898-1 d > 39 mm: as agreed d<3mmandd>39mm: as agreed Fords24mmands 10dor150mmb:A For d > 24 mm or > 10 dor 150 mmb: B SO 4759-1 Non-ferrous meta1 Materials specified in SO 8839 Finish and/or coating Acceptability As processed Requirements for electroplating are covered in SO 4042 Plain Requirements for electroplating are covered in SO 4042 Requirements for non-electrolytically applied zinc flake coatings are covered in SO 10683 lf different electroplating reql rirc?ments are desired or if requirements are needed for other finishes, they should be agreed between customer and supplier. 1 Limits for surface discontinuities are covered in SO 6157-1 For acceptance procedure, See SO 3269. For other property classes See SO 898-1 for steel and SO 3506-1 for stainless steel respectively. Whichever is shorter. 5 Designation A hexagon head bolt with thread M12, nominal length 1 = 80 mm and property dass 8.8 is designated as follows: Hexagon head bolt SO 4014 - M12 X 80-8.8 10
0 SO SO 4014:1999(E) Bibliography [l] SO 401 5 1979, Hexagon head bolts - Product grade B - Reduced shank (shank diameter approximately equal to pitch diameter). [2] SO 401 6:1999, Hexagon head bolts - Product grade C. [3] SO 401 7:1999, Hexagon head screws - Product grades A and B. [4] SO 4018:1999, Hexagon head screws - Product grade C. [5] SO 4032:1999, Hexagon nuts, style 1 - Product grades A and B. [6] SO 4033:1999, Hexagon nuts, style 2 - Product grades A and B. [7] SO 4034:1999, Hexagon nuts - Product grade C. [8] SO 40351 999, Hexagon thin nuts (chamfered)- Product grades A and B. [9] SO 4036:1999, Hexagon thin nuts (unchamfered) - Product grade B. [l 01 SO 41 61 :1999, Hexagon nuts with flange - Coarse thread. [l 11 SO 41 62:-5), Hexagon bolts with flange - Small series - Product grade combination NB. [12] SO 47751 984, Hexagon nuts for high-strength structural bolting with large width across flats - Product grade B - Property classes 8 and 10. [13] SO 741 1 :1984, Hexagon bolts for high-strength structural bolting with large width across flats (thread lengths according to /SO 888) - Product grade C - Property classes 8.8 and 10.9. [14] SO 741 2:1984, Hexagon bolts for high-strength structural bolting with large width across flats (short thread length) - Product grade C - Property classes 8.8 and 10.9. [15] SO 741 3:1984, Hexagon nuts for structural bolting, style 1, hot-dip galvanize (oversize tapped) - Product grades A and B - Property classes 5, 6 and 8. 0 [16] SO 741 4:1984, Hexagon nuts for structural bolting with large width across flats, style 1 - Product grade B - Property class 10. [17] SO 741 7:1984, Hexagon nuts for structural bolting, style 2, hot-dip galvanize (oversize tapped) - Product grade A - Property dass 9. [18] SO 8673:1999, Hexagon nuts, style 1, with metric fine pitch thread - Product grades A and B. [19] SO 8674:1999, Hexagon nuts, sty/e 2, with metric fine pitch thread - Product grades A and B. [20] SO 8675:1999, Hexagon thin nuts (chamfered) with metric fine pitch thread - Product grades A and B. [21] SO 8676:1999, Hexagon head screws with metric fine pitch thread - Product grades A and B. 5, To be published. (Revision of SO 4162:1990) 11
SO 401 4:1999(E) 0 SO [22] SO 87651999, Hexagon head bolts with metric fine pitch thread - Product grades A and B. [23] SO 10663:1999, Hexagon nuts with flange - fine pitch thread. [24] SO 15071 :1999, Hexagon bolts with flange -Small series - Product grade A. 12