1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 4018:2011Hexagon head screws Product grade CBS EN ISO 4018:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 4018:2011. It
2、supersedes BS EN ISO 4018:2001, which is withdrawn.The UK participation in its preparation was entrusted to T e c h n i c a l C o m m i t t e e F M E / 9 / 3 , F a s t e n e r s - P r o d u c t S t a n d a r d s .A list of organizations represented on this committee can be obtained on request to its
3、 secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. BSI 2011 ISBN 978 0 580 71152 7 ICS 21.060.10 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard
4、was published under the authority of the Standards Policy and Strategy Committee on 30 April 2011.Amendments issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 4018 April 2011 ICS 21.060.10 Supersedes EN ISO 4018:2000English Version Hexagon h
5、ead screws - Product grade C (ISO 4018:2011) Vis tte hexagonale entirement filetes - Grade C (ISO 4018:2011) Sechskantschrauben mit Gewinde bis Kopf - Produktklasse C (ISO 4018:2011) This European Standard was approved by CEN on 31 January 2011. CEN members are bound to comply with the CEN/CENELEC I
6、nternal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to
7、any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official
8、 versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovaki
9、a, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide fo
10、r CEN national Members. Ref. No. EN ISO 4018:2011: EBS EN ISO 4018:2011 EN ISO 4018:2011 (E) 3 Foreword This document (EN ISO 4018:2011) has been prepared by Technical Committee ISO/TC 2 “ Fasteners“ in collaboration with Technical Committee CEN/TC 185 “Fasteners”, the secretariat of which is held b
11、y DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2011, and conflicting national standards shall be withdrawn at the latest by October 2011. Attention is drawn to the possibility that
12、 some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 4018:2000. According to the CEN/CENELEC Internal Regulations, the national standards organizatio
13、ns of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
14、 Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 4018:2011 has been approved by CEN as a EN ISO 4018:2011 without any modification. BS EN ISO 4018:2011ISO 4018:2011(E) ISO 2011 All rights reserved iiiForeword ISO (the International O
15、rganization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been estab
16、lished has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardizat
17、ion. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting
18、. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such p
19、atent rights. ISO 4018 was prepared by Technical Committee ISO/TC 2, Fasteners, Subcommittee SC 10, Product standards for fasteners. This fourth edition cancels and replaces the third edition (ISO 4018:1999), of which it constitutes a minor revision. BS EN ISO 4018:2011ISO 4018:2011(E) iv ISO 2011 A
20、ll rights reservedIntroduction This International Standard belongs to a complete family of product standards developed by ISO on external hexagon drive fasteners. It comprises the following: a) hexagon head bolts (ISO 4014, ISO 4015, ISO 4016 and ISO 8765); b) hexagon head screws (ISO 4017, ISO 4018
21、 and ISO 8676); c) hexagon nuts (ISO 4032, ISO 4033, ISO 4034, ISO 4035, ISO 4036, ISO 7040, ISO 7041, ISO 7042, ISO 7719, ISO 7720, ISO 8673, ISO 8674, ISO 8675, ISO 10511, ISO 10512 and ISO 10513); d) hexagon bolts with flange (ISO 4162, ISO 15071 and ISO 15072); e) hexagon nuts with flange (ISO 4
22、161, ISO 7043, ISO 7044, ISO 10663, ISO 12125, ISO 12126 and ISO 21670). BS EN ISO 4018:2011INTERNATIONAL STANDARD ISO 4018:2011(E) ISO 2011 All rights reserved 1Hexagon head screws Product grade C 1 Scope This International Standard specifies the characteristics of hexagon head screws with threads
23、from M5 up to and including M64, of product grade C. NOTE This type of product is the same as that covered by ISO 4016 with the exception of threading up to head. If, in special cases, specifications other than those listed in this International Standard are required, they can be selected from exist
24、ing International Standards, for example ISO 724, ISO 888, ISO 898-1, ISO 965-1 and ISO 4759-1. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest e
25、dition of the referenced document (including any amendments) applies. ISO 225, Fasteners Bolts, screws, st uds and nuts Symbols and descriptions of dimensions ISO 724, ISO general-purpose metric screw threads Basic dimensions ISO 898-1, Mechanical properties of fasteners made of carbon steel and all
26、oy steel Part 1: Bolts, screws and studs with specified property classes Coarse thread and fine pitch thread ISO 965-1, ISO general-purpose metric screw threads Tolerances Part 1: Principles and basic data ISO 3269, Fasteners Acceptance inspection ISO 4042, Fasteners Electroplated coatings ISO 4759-
27、1, Tolerances for fasteners Part 1: Bolts, screws, studs and nuts Product grades A, B and C ISO 8992, Fasteners General requirements fo r bolts, screws, studs and nuts ISO 10683, Fasteners Non-electrolytically applied zinc flake coatings BS EN ISO 4018:2011ISO 4018:2011(E) 2 ISO 2011 All rights rese
28、rved3 Dimensions See Figure 1 and Tables 1 and 2. Symbols and descriptions of dimensions are specified in ISO 225. Dimensions in millimetres a = 15 to 30. e Reference datum for dw. b End without special requirements. f ds pitch diameter. c Incomplete thread u u 2P. g Permissible shape. d Washer face
29、 permissible. Figure 1 BS EN ISO 4018:2011ISO 4018:2011(E) ISO 2011 All rights reserved 3Table 1 Preferred threads Dimensions inmillimetres Thread, dM5 M6 M8 M10 M12 M16 M20 M24 M30 M36 M42 M48 M56 M64 Pa0,8 1 1,25 1,5 1,75 2 2,5 3 3,5 4 4,5 5 5,5 6 max. 2,4 3 4 4,5 5,3 6 7,5 9 10,5 12 13,5 15 16,5
30、18 amin. 0,8 1 1,25 1,5 1,75 2 2,5 3 3,5 4 4,5 5 5,5 6 cmax. 0,5 0,5 0,6 0,6 0,6 0,8 0,8 0,8 0,8 0,8 1 1 1 1 damax. 6 7,2 10,2 12,2 14,7 18,7 24,4 28,4 35,4 42,4 48,6 56,6 67 75 dwmin. 6,74 8,74 11,47 14,47 16,47 22 27,7 33,25 42,75 51,11 59.95 69,45 78,66 88,16 emin. 8,63 10,89 14,2 17,59 19,85 26,
31、17 32,95 39,55 50,85 60,79 71,3 82,6 93,56 104,86nom. 3,5 4 5,3 6,4 7,5 10 12,5 15 18,7 22,5 26 30 35 40 max. 3,875 4,375 5,675 6,85 7,95 10,75 13,4 15,9 19,75 23,55 27,05 31,05 36,25 41,25 kmin. 3,125 3,625 4,925 5,95 7,05 9,25 11,6 14,1 17,65 21,45 24,95 28,95 33,75 38,75 kwbmin. 2,19 2,54 3,45 4,
32、17 4,94 6,48 8,12 9,87 12,36 15,02 17,47 20,27 23,63 27,13 rmin. 0,2 0,25 0,4 0,4 0,6 0,6 0,8 0,8 1 1 1,2 1,6 2 2 nom. =max. 8,00 10,00 13,00 16,00 18,00 24,00 30,00 36 46 55,0 65,0 75,0 85,0 95,0 smin. 7,64 9,64 12,57 15,57 17,57 23,16 29,16 35 45 53,8 63,1 73,1 82,8 92,8 lcnom. min. max. 10 9,25 1
33、0,75 12 11,1 12,9 16 15,1 16,9 20 18,95 21,05 25 23,95 26,05 30 28,95 31,05 35 33,75 36,25 40 38,75 41,25 45 43,75 46,25 50 48,75 51,25 55 53,5 56,5 60 58,5 61,5 65 63,5 66,5 70 68,5 71,5 80 78,5 81,5 BS EN ISO 4018:2011ISO 4018:2011(E) 4 ISO 2011 All rights reservedTable 1(continued)Dimensions inmi
34、llimetres Thread, dM5 M6 M8 M10 M12 M16 M20 M24 M30 M36 M42 M48 M56 M64 lcnom. min. max. 90 88,25 91,75 100 98,25 101,75110 108,25111,75120 118,25121,75130 128 132 140 138 142 150 148 152 160 156 164 180 176 184 200 195,4 204,6 220 215,4 224,6 240 235,4 244,6 260 254,8 265,2 280 274,8 285,2 300 294,
35、8 305,2 320 314,3 325,7 340 334,3 345,7 360 354,3 365,7 380 374,3 385,7 400 394,3 405,7 420 413,7 426,3 440 433,7 446,3 460 453,7 466,3 480 473,7 486,3 500 493,7 506,3 aPis the pitch of the thread. bkw,min=0,7 kmin. cThe range of preferred lengths is between the solid, bold, stepped lines. BS EN ISO
36、 4018:2011ISO 4018:2011(E) ISO 2011 All rights reserved 5Table 2 Non-preferredthreads Dimensions inmillimetres Thread, dM14 M18 M22 M27 M33 M39 M45 M52 M60 Pa2 2,5 2,5 3 3,5 4 4,5 5 5,5 max. 6 7,5 7,5 9 10,5 12 13,5 15 16,5 amin. 2 2,5 2,5 3 3,5 4 4,5 5 5,5 cmax. 0,6 0,8 0,8 0,8 0,8 1 1 1 1 damax. 1
37、6,7 21,2 26,4 32,4 38,4 45,4 52,6 62,6 71 dwmin. 19,15 24,85 31,35 38 46,55 55,86 64,7 74,2 83,41 emin. 22,78 29,56 37,29 45,2 55,37 66,44 76,95 88,25 99,21 nom. 8,8 11,5 14 17 21 25 28 33 38 max. 9,25 12,4 14,9 17,9 22,05 26,05 29,05 34,25 39,25 kmin. 8,35 10,6 13,1 16,1 19,95 23,95 26,95 31,75 36,
38、75 kwbmin. 5,85 7,42 9,17 11,27 13,97 16,77 18,87 22,23 25,73 rmin. 0,6 0,6 0,8 1 1 1 1,2 1,6 2 nom. =max. 21,00 27,00 34 41 50 60,0 70,0 80,0 90,0 smin. 20,16 26,16 33 40 49 58,8 68,1 78,1 87,8 lcnom. min. max. 30 28,95 31,05 35 33,75 36,25 40 38,75 41,25 45 43,75 46,25 50 48,75 51,25 55 53,5 56,5
39、60 58,5 61,5 65 63,5 66,5 70 68,5 71,5 80 78,5 81,5 90 88,25 91,75 100 98,25 101,75110 108,25111,75120 118,25121,75130 128 132 BS EN ISO 4018:2011ISO 4018:2011(E) 6 ISO 2011 All rights reservedTable 2(continued)Dimensions inmillimetres Thread, dM14 M18 M22 M27 M33 M39 M45 M52 M60 lcnom. min. max. 14
40、0 138 142 150 148 152 160 156 164 180 176 184 200 195,4 204,6 220 215,4 224,6 240 235,4 244,6 260 254,8 265,2 280 274,8 285,2 300 294,8 305,2 320 314,3 325,7 340 334,3 345,7 360 354,3 365,7 380 374,3 385,7 400 394,3 405,7 420 413,7 426,3 440 433,7 446,3 460 453,7 466,3 480 473,7 486,3 500 493,7 506,
41、3 aPis the pitch of the thread. bkw,min=0,7 kmin. cThe range of preferred lengths is between the solid, bold, stepped lines.BS EN ISO 4018:2011ISO 4018:2011(E) ISO 2011 All rights reserved 74 Specifications and reference International Standards See Table 3. Table 3 Specifications and reference Inter
42、national Standards Material Steel General requirements International Standard ISO 8992 Tolerance class 8g Thread International Standard ISO 724, ISO 965-1 Property classad u 39 mm: 4.6, 4.8 d 39 mm: as agreed Mechanical property International Standard d u 39 mm: ISO 898-1 d 39 mm: as agreed Product
43、grade C Tolerance International Standard ISO 4759-1 As processed Finish Coating Requirements for electroplating are specified in ISO 4042. Requirements for non-electrolytically applied zinc flake coatings are specified in ISO 10683. Additional requirements or other finishes or coatings shall be agre
44、ed between the supplier and the purchaser. Acceptability Acceptance inspection is specified in ISO 3269. aOther property classes are specified in ISO 898-1. 5 Designation EXAMPLE A hexagon head screw, product grade C, with thread M12, nominal length l = 80 mm and property class 4.6 is designated as
45、follows: Hexagon head screw ISO 4018 - M12 80 - 4.6 BS EN ISO 4018:2011ISO 4018:2011(E) 8 ISO 2011 All rights reservedBibliography 1 ISO 888, Bolts, screws and studs Nominal lengths, and thread lengths for general purpose bolts 2 ISO 4014, Hexagon head bolts Product grades A and B 3 ISO 4015, Hexago
46、n head bolts Product grade B Reduced shank (shank diameter approximately equal to pitch diameter) 4 ISO 4016, Hexagon head bolts Product grade C 5 ISO 4017, Hexagon head screws Product grades A and B 6 ISO 4032, Hexagon nuts, style 1 Product grades A and B 7 ISO 4033, Hexagon nuts, style 2 Product g
47、rades A and B 8 ISO 4034, Hexagon nuts Product grade C 9 ISO 4035, Hexagon thin nuts (chamfered) Product grades A and B 10 ISO 4036, Hexagon thin nuts (unchamfered) Product grade B 11 ISO 4161, Hexagon nuts with flange Coarse thread 12 ISO 4162, Hexagon flange bolts Small series 13 ISO 7040, Prevail
48、ing torque type hexagon nuts (with non-metallic insert), style 1 Property classes 5, 8 and 10 14 ISO 7041, Prevailing torque type hexagon nuts (with non-metallic insert), style 2 Property classes 9 and 12 15 ISO 7042, Prevailing torque type all-metal hexagon nuts, style 2 Property classes 5, 8, 10 a
49、nd 12 16 ISO 7043, Prevailing torque type hexagon nuts with flange (with non-metallic insert) Product grades A and B 17 ISO 7044, Prevailing torque type all-metal hexagon nuts with flange Product grades A and B 18 ISO 7719, Prevailing torque type all-metal hexagon nuts, style 1 Property classes 5, 8 and 10 19 ISO 7720, Prevailing torque type all-metal hexagon nuts, style 2 Property class 9 20 ISO 8673, Hexagon nuts,
