BS EN ISO 8674-2012 Hexagon high nuts (style 2) with metric fine pitch thread Product grades A and B《六角螺母(2型)米制细牙螺纹 产品等级A和B级》.pdf

1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 8674:2012Hexagon high nuts (style 2) with metric fine pitch thread Product grades A and BCopyright European Committee for Standardization Provided by IHS under license

2、with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 8674:2012 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 8674:2012. It supersedes BS EN ISO 8674:2001 which is withdrawn.The UK participation in its prepara

3、tion was entrusted to Technical Committee FME/9, Fasteners.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The

4、 British Standards Institution 2013. Published by BSI Standards Limited 2013ISBN 978 0 580 78563 4 ICS 21.060.20 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on

5、31 January 2013.Amendments issued since publicationDate T e x t a f f e c t e dCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM E

6、N ISO 8674 December 2012 ICS 21.060.20 Supersedes EN ISO 8674:2000English Version Hexagon high nuts (style 2) with metric fine pitch thread - Product grades A and B (ISO 8674:2012) crous hexagonaux hauts (style 2) filetage mtrique pas fin - Grades A et B (ISO 8674:2012) Sechskantmuttern, Typ 2, mit

7、metrischem Feingewinde - Produktklassen A und B (ISO 8674:2012) This European Standard was approved by CEN on 15 November 2012. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard

8、 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 any CEN member. This European Standard exists in three official versions (English, French, German). A version in any o

9、ther 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 versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republi

10、c, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN CO

11、MMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 8674:2012: ECopyright European

12、Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 8674:2012EN ISO 8674:2012 (E) 3 Foreword This document (EN ISO 8674:2012) has been prepared by Technical Committee ISO/TC 2 “Fasteners“ inc

13、ollaboration with Technical Committee CEN/TC 185 “Fasteners” the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identicaltext or by endorsement, at the latest by June 2013, and conflicting national standards s

14、hall be withdrawn atthe latest by June 2013. Attention is drawn to the possibility that some of the elements of this document may be the subject of patentrights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 8674:2000.

15、 According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, CzechRepublic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germ

16、any, Greece,Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 8674:2012 has been approved by CEN as a EN ISO 8674:201

17、2 without any modification. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 8674:2012ISO 8674:2012(E) ISO 2012 All rights reserved iiiContents PageForeword ivIntroducti

18、on v1 Scope 12 Normative references . 13 Dimensions . 14 Requirements and reference International Standards 35 Designation . 3Bibliography . 4Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license f

19、rom IHS-,-,-BS EN ISO 8674:2012ISO 8674:2012(E)ForewordISO (the International Organization 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 mem

20、ber body interested in a subject for which a technical committee has been established 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 El

21、ectrotechnical Commission (IEC) on all matters of electrotechnical standardization.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 adopt

22、ed by the technical committees are circulated to the member bodies for voting. 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

23、 rights. ISO shall not be held responsible for identifying any or all such patent rights.ISO 8674 was prepared by Technical Committee ISO/TC 2, Fasteners, Subcommittee SC 12, Fasteners with metric internal thread.This third edition cancels and replaces the second edition (ISO 8674:1999), of which it

24、 constitutes a minor revision.iv ISO 2012 All rights reservedCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 8674:2012ISO 8674:2012(E)IntroductionThis International Sta

25、ndard belongs to a complete group 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 and ISO 8676);c) hexagon nuts (ISO 4032, ISO 4033, ISO

26、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 4161, ISO 7043, ISO 7044, ISO 10663, ISO 12125, ISO 12126 an

27、d ISO 21670). ISO 2012 All rights reserved vCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 8674:2012Copyright European Committee for Standardization Provided by IHS un

28、der license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 8674:2012Hexagon high nuts (style 2) with metric fine pitch thread Product grades A and B1 ScopeThis International Standard specifies the characteristics of hexagon high nuts (style 2) wi

29、th metric fine pitch thread, with nominal thread diameters, D, from 8 mm up to and including 36 mm, with product grade A for sizes D 16 mm and product grade B for sizes D 16 mm.If, in special cases, specifications other than those listed in this International Standard are required, they can be selec

30、ted from existing International Standards, for example ISO 724, ISO 898-2, ISO 965-1 and ISO 4759-1.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable to its application. For undated references, the latest edition of

31、the referenced document (including any amendments) applies.ISO 225, Fasteners Bolts, screws, studs and nuts Symbols and descriptions of dimensionsISO 724, ISO general-purpose metric screw threads Basic dimensionsISO 898-2, Mechanical properties of fasteners made of carbon steel and alloy steel Part

32、2: Nuts with specified property classes Coarse thread and fine pitch threadISO 965-1, ISO general-purpose metric screw threads Tolerances Part 1: Principles and basic dataISO 3269, Fasteners Acceptance inspectionISO 4042, Fasteners Electroplated coatingsISO 4759-1, Tolerances for fasteners Part 1: B

33、olts, screws, studs and nuts Product grades A, B and CISO 6157-2, Fasteners Surface discontinuities Part 2: NutsISO 8839, Mechanical properties of fasteners Bolts, screws, studs and nuts made of non-ferrous metalsISO 8992, Fasteners General requirements for bolts, screws, studs and nutsISO 10683, Fa

34、steners Non-electrolytically applied zinc flake coatings3 DimensionsSee Figure 1 and Tables 1 and 2.Symbols and descriptions of dimensions are specified in ISO 225.INTERNATIONAL STANDARD ISO 8674:2012(E) ISO 2012 All rights reserved 1Copyright European Committee for Standardization Provided by IHS u

35、nder license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 8674:2012ISO 8674:2012(E)aUnless otherwise specified at the time of order, the nuts are delivered without washer-face.b = 15 to 30.c = 90 to 120.Figure 1Table 1 Preferred threadsDimensio

36、ns in millimetresThread (D P) M81 M101 M121,5 M161,5 M201,5 M242 M302 M363cmax. 0,60 0,60 0,60 0,80 0,80 0,80 0,80 0,80min. 0,15 0,15 0,15 0,20 0,20 0,20 0,20 0,20damax. 8,75 10,80 13,00 17,30 21,60 25,90 32,40 38,90min. 8,00 10,00 12,00 16,00 20,00 24,00 30,00 36,00dwmin. 11,63 14,63 16,63 22,49 27

37、,70 33,25 42,75 51,11e min. 14,38 17,77 20,03 26,75 32,95 39,55 50,85 60,79mmax. 7,50 9,30 12,00 16,40 20,30 23,90 28,60 34,70min. 7,14 8,94 11,57 15,70 19,00 22,60 27,30 33,10mwmin. 5,71 7,15 9,26 12,56 15,20 18,08 21,84 26,48snom. = max. 13,00 16,00 18,00 24,00 30,00 36,00 46,00 55,00min. 12,73 15

38、,73 17,73 23,67 29,16 35,00 45,00 53,80Table 2 Non-preferred threadsDimensions in millimetresThread (D P) M101,25 M121,25 M141,5 M181,5 M202 M221,5 M272 M332cmax. 0,60 0,60 0,60 0,80 0,80 0,80 0,80 0,80min. 0,15 0,15 0,15 0,20 0,20 0,20 0,20 0,20damax. 10,80 13,00 15,10 19,50 21,60 23,70 29,10 35,60

39、min. 10,00 12,00 14,00 18,00 20,00 22,00 27,00 33,00dwmin. 14,63 16,63 19,64 24,85 27,70 31,35 38,00 46,55e min. 17,77 20,03 23,36 29,56 32,95 37,29 45,20 55,37mmax. 9,30 12,00 14,10 17,60 20,30 21,80 26,70 32,50min. 8,94 11,57 13,40 16,90 19,00 20,50 25,40 30,90mwmin. 7,15 9,26 10,72 13,52 15,20 16

40、,40 20,32 24,72snom. = max. 16,00 18,00 21,00 27,00 30,00 34,00 41,00 50,00min. 15,73 17,73 20,67 26,16 29,16 33,00 40,00 49,002 ISO 2012 All rights reservedCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted wi

41、thout license from IHS-,-,-BS EN ISO 8674:2012ISO 8674:2012(E)4 Requirements and reference International StandardsSee Table 3.Table 3 Requirements and reference International StandardsMaterial SteelGeneral requirements International Standard ISO 8992ThreadTolerance class 6HInternational Standards IS

42、O 724, ISO 965-1Mechanical propertiesProperty classD 16 mm: 8, 12D 36 mm: 10International Standard ISO 898-2ToleranceProduct gradeD 16 mm: A D 16 mm: BInternational Standard ISO 4759-1Finish CoatingAs processedRequirements for electroplating are specified in ISO 4042.Requirements for non-electrolyti

43、cally applied zinc flake coatings are specified in ISO 10683.Additional requirements or other finishes or coatings shall be agreed between the supplier and the purchaser.Surface integrityLimits for surface discontinuities are specified in ISO 6157-2.Acceptability Acceptance inspection is specified i

44、n ISO 3269.5 DesignationEXAMPLE A hexagon high nut (style 2) with thread M16 1,5 and property class 12 is designated as follows:Hexagon high nut ISO 8674 - M16 1,5 - 12 ISO 2012 All rights reserved 3Copyright European Committee for Standardization Provided by IHS under license with CENNot for Resale

45、No reproduction or networking permitted without license from IHS-,-,-BS EN ISO 8674:2012ISO 8674:2012(E)Bibliography1 ISO 4014, Hexagon head bolts Product grades A and B2 ISO 4015, Hexagon head bolts Product grade B Reduced shank (shank diameter approximately equal to pitch diameter)3 ISO 4016, Hexa

46、gon head bolts Product grade C4 ISO 4017, Hexagon head screws Product grades A and B5 ISO 4018, Hexagon head screws Product grade C6 ISO 4032, Hexagon regular nuts (style 1) Product grades A and B7 ISO 4033, Hexagon high nuts (style 2) Product grades A and B8 ISO 4034, Hexagon regular nuts (style 1)

47、 Product grade C9 ISO 4035, Hexagon thin nuts chamfered (style 0) Product grades A and B10 ISO 4036, Hexagon thin nuts unchamfered (style 0) Product grade B11 ISO 4161, Hexagon nuts with flange, style 2 Coarse thread12 ISO 4162, Hexagon flange bolts Small series Product grade A with driving feature

48、of product grade B13 ISO 7040, Prevailing torque type hexagon regular nuts (with non-metallic insert) Property classes 5, 8 and 1014 ISO 7041, Prevailing torque type hexagon nuts (with non-metallic insert), style 2 Property classes 9 and 1215 ISO 7042, Prevailing torque type all-metal hexagon high nuts Property classes 5, 8, 10 and 1216 ISO 7043, Prevailing torque type hexagon nuts with flange