EN ISO 7380-1-2011 en Button head screws - Part 1 Hexagon socket button head screws《圆头螺钉 第1部分 内六角圆头螺钉》.pdf

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1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 7380-1:2011Button head screwsPart 1: Hexagon socket button head screws(ISO 7380-1:2011)Incorporating corrigendum October 2011BS EN ISO 7380-1:2011 BRITISH STANDARDNatio

2、nal forewordThis British Standard is the UK implementation of EN ISO 7380-1:2011. It supersedes BS EN ISO 7380:2004,which is withdrawn.The UK participation in its preparation was entrusted to T e c h n i c a l C o m m i t t e e F M E / 9 / 3 , F a s t e n e r s - P r o d u c t S t a n d a r d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 l

3、ist 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. BSI 2011 ISBN 978 0 580 76656 5 ICS 21.060.10 Compliance with a B

4、ritish Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 August 2011.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dImplementation of CEN Correction NoticeAugu

5、st 2011. Correction to supersessioninformation.30 November 2011EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 7380-1 August 2011 ICS 21.060.10 Supersedes EN ISO 7380:2004English Version Button head screws - Part 1: Hexagon socket button head screws (ISO 7380-1:2011) Vis tte cylindrique bom

6、be plate - Partie 1: Vis tte cylindrique bombe plate six pans creux (ISO 7380-1:2011) Halbrundkopfschrauben (abgeflacht) - Teil 1: Abgeflachter Halbrundkopf mit Innensechskant (ISO 7380-1:2011) This European Standard was approved by CEN on 22 July 2011. CEN members are bound to comply with the CEN/C

7、ENELEC Internal 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 Centr

8、e or to 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

9、official 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,

10、 Slovakia, 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 worl

11、dwide for CEN national Members. Ref. No. EN ISO 7380-1:2011: E3 Foreword This document (EN ISO 7380-1:2011) 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 by DIN. This European Standard s

12、hall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by February 2012, and conflicting national standards shall be withdrawn at the latest by February 2012. Attention is drawn to the possibility that some of the elements of this

13、 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 7380:2004. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries

14、 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, Romania, Slovakia, Slovenia,

15、 Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 7380-1:2011 has been approved by CEN as a EN ISO 7380-1:2011 without any modification. BS EN ISO 7380-1:2011 EN ISO 7380-1:2011 (E) ISO 2011 All rights reserved iiiForeword ISO (the International Organization for

16、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 established has the r

17、ight 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 standardization. Internation

18、al 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. Publication as

19、 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 patent rights. IS

20、O 7380-1 was prepared by Technical Committee ISO/TC 2, Fasteners, Subcommittee SC 11, Fasteners with metric external thread. This first edition of ISO 7380-1, together with ISO 7380-2, cancels and replaces ISO 7380:2004, which has been technically revised. ISO 7380 consists of the following parts, u

21、nder the general title Button head screws: Part 1: Hexagon socket button head screws Part 2: Hexagon socket button head screws with collar BS EN ISO 7380-1:2011 EN ISO 7380-1:2011 (E)BS EN ISO 7380-1:2011 EN ISO 7380-1:2011 (E)INTERNATIONAL STANDARD1Button head screws Part 1: Hexagon socket button h

22、ead screws 1 Scope This International Standard specifies the characteristics of hexagon socket button head screws with threads from M3 up to and including M16, with product grade A and with reduced loadability according to Table 3. If, in special cases, specifications other than those listed in this

23、 International Standard are required, they can be selected from existing International Standards, e.g. ISO 261, ISO 888, ISO 898-1, ISO 965-2, ISO 3506-1 and ISO 4759-1. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated refere

24、nces, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 225, Fasteners Bolts, screws, studs and nuts Symbols and descriptions of dimensions ISO 261, ISO general purpose metric screw threads General plan ISO 8

25、98-1, Mechanical properties of fasteners made of carbon steel and alloy steel Part 1: Bolts, screws and studs with specified property classes Coarse thread and fine pitch thread ISO 965-2, ISO general purpose metric screw threads Tolerances Part 2: Limits of sizes for general purpose external and in

26、ternal screw threads Medium quality ISO 965-3, ISO general purpose metric screw threads Tolerances Part 3: Deviations for constructional screw threads ISO 3269, Fasteners Acceptance inspection ISO 3506-1, Mechanical properties of corrosion-resistant stainless steel fasteners Part 1: Bolts, screws an

27、d studs ISO 4042, Fasteners Electroplated coatings ISO 4753, Fasteners Ends of parts with external ISO metric thread ISO 4759-1, Tolerances for fasteners Part 1: Bolts, screws, studs and nuts Product grades A, B and C ISO 6157-1, Fasteners Surface discontinuities Part 1: Bolts, screws and studs for

28、general requirements ISO 6157-3, Fasteners Surface discontinuities Part 3: Bolts, screws and studs for special requirements EN ISO 7380-1:2011 (E)BS EN ISO 7380-1:2011 ISO 2011 2 ISO 8992, Fasteners General requirements for bolts, screws, studs and nuts ISO 10683, Fasteners Non-electrolytically appl

29、ied zinc flake coatings ISO 23429, Gauging of hexagon sockets 3 Dimensions See Figure 1 and Table 1. Symbols and descriptions of dimensions are specified in ISO 225. Key rsunderhead radius for a screw with unthreaded shank rtunderhead radius for a fully threaded screw adsapplies if values of ls,mina

30、re specified. bIn accordance with ISO 4753, point chamfered or for sizes M4 “as rolled”. cIncomplete thread u 2P. dA slight rounding or countersink at the mouth of the socket is permissible. eFor broached sockets which are at the maximum limit of size, the overcut resulting from drilling shall not e

31、xceed one third of the length of any flat of the socket which is e/2. fPermissible alternative form of socket. Figure 1 Hexagon socket button head screw BS EN ISO 7380-1:2011 EN ISO 7380-1:2011 (E) ISO 2011 3Table 1 Dimensions of hexagon socket button head screws Dimensions in millimetres Thread, d

32、M3 M4 M5 M6 M8 M10 M12 M16 Pa 0,5 0,7 0,8 1 1,25 1,5 1,75 2 bb ref. 18 20 22 24 28 32 36 44 damax. 3,6 4,7 5,7 6,8 9,2 11,2 13,7 17,7 max. 5,70 7,60 9,50 10,50 14,00 17,50 21,00 28,00 dkmin. 5,40 7,24 9,14 10,07 13,57 17,07 20,48 27,48 dLref. 2,6 3,8 5,0 6,0 7,7 10,0 12,0 16,0 max. 3 4 5 6 8 10 12 1

33、6 dsmin. 2,86 3,82 4,82 5,82 7,78 9,78 11,73 15,73 dwmin. 5,00 6,84 8,74 9,57 13,07 16,57 19,68 26,68 ecd min. 2,303 2,873 3,443 4,583 5,723 6,863 9,149 11,429 max. 1,65 2,20 2,75 3,30 4,40 5,50 6,60 8,80 k min. 1,40 1,95 2,50 3,00 4,10 5,20 6,24 8,44 max. 3,70 4,60 5,75 6,15 7,95 9,80 11,20 15,30 r

34、fmin. 3,30 4,20 5,25 5,65 7,45 9,20 10,50 14,50 rsmin. 0,10 0,20 0,20 0,25 0,40 0,40 0,60 0,60 rtmin. 0,30 0,40 0,45 0,50 0,70 0,70 1,10 1,10 nom. 2 2,5 3 4 5 6 8 10 max. 2,080 2,580 3,080 4,095 5,140 6,140 8,175 10,175 sd min. 2,020 2,520 3,020 4,020 5,020 6,020 8,025 10,025 t min. 1,04 1,30 1,56 2

35、,08 2,60 3,12 4,16 5,20 w min. 0,20 0,30 0,38 0,74 1,05 1,45 1,63 2,25 BS EN ISO 7380-1:2011 EN ISO 7380-1:2011 (E) ISO 2011 4 Table 1 (continued) Dimensions in millimetres Thread, d M3 M4 M5 M6 M8 M10 M12 M16 le lsand lgflslglslglslglslglslglslglslglslgnom. min. max. min. max. min. max. min. max. m

36、in. max. min. max. min. max. min. max. min. max.6 5,76 6,24 8 7,71 8,29 10 9,71 10,29 12 11,65 12,35 16 15,65 16,35 20 19,58 20,42 25 24,58 25,42 4,5 7 30 29,58 30,42 9,5 12 6,5 10 4 8 35 34,5 35,5 11,5 15 9 13 6 11 40 39,5 40,5 16,5 20 14 18 11 16 5,75 12 45 44,5 45,5 19 23 16 21 10,75 17 5,5 13 50

37、 49,5 50,5 24 28 21 26 15,75 22 10,5 18 55 54,4 55,6 26 31 20,75 27 15,5 23 10,25 19 60 59,4 60,6 31 36 25,75 32 20,5 28 15,25 24 65 64,4 65,6 30,75 37 25,5 33 20,25 29 11 21 70 69,4 70,6 35,75 42 30,5 38 25,25 34 16 26 80 79,4 80,6 45,75 52 40,5 48 35,25 44 26 36 90 89,4 90,6 50,5 58 45,25 54 36 46

38、 aP is the pitch of the thread. bFor lengths between the bold, stepped lines in the unshaded area. cemin= 1,14 smin. dCombined gauging of socket dimensions, e and s, as specified in ISO 23429. eThe range of preferred lengths is between the bold, stepped lines. fLengths in the shaded area are threade

39、d to the head within 3P. Lengths below the shaded area have values of lgand lsinaccordance with the following equations: lg,max= lnom b ls,min= lg,max 5P BS EN ISO 7380-1:2011 EN ISO 7380-1:2011 (E) ISO 201154 Requirements and reference International Standards See Tables 2 and 3. Table 2 Requirement

40、s and reference International Standards Material Steel Stainless steel General requirements International Standard ISO 8992 Tolerance class 5g6g for property class 12.9/12.9 6g for other property classes Thread International Standard ISO 261, ISO 965-2, ISO 965-3 Property class/steel grade 8.8, 10.9

41、, 12.9/12.9aA2-70, A3-70, A4-70, A5-70 A2-80, A3-80, A4-80, A5-80 Marking symbol 08.8, 010.9, 012.9/012.9 A2-070, A3-070, A4-070, A5-070A2-080, A3-080, A4-080, A5-080bMechanical property International Standard ISO 898-1cISO 3506-1dProduct grade A Tolerance International Standard ISO 4759-1 As proces

42、sed. Requirements for electro-platingeare specified in ISO 4042. Requirements for non-electrolytically applied zinc flake coatings are specified in ISO 10683. As processed. Finish Coating Additional requirements or other finishes or coatings shall be agreed between the supplier and the purchaser. Su

43、rface integrity Limits for surface discontinuities are specified in ISO 6157-1 and for property class 12.9/12.9 in ISO 6157-3. Acceptability The acceptance inspection is specified in ISO 3269. aCaution is advised when the use of property class 12.9/12.9 is considered. The capability of the fastener

44、manufacturer, the service conditions and the wrenching methods should be considered. Environments can cause stress corrosion cracking of as processed fasteners as well as coated fasteners. bThe marking symbols for stainless steel fasteners with reduced loadability are intended to be included in the

45、next revision of ISO 3506-1. cBecause of their head configurations, it is possible for these screws to not meet the minimum ultimate tensile loads specified in ISO 898-1. They shall nevertheless meet the other material and property requirements for the respective property class specified in ISO 898-

46、1. In addition, when full-size screws are tensile tested in accordance with ISO 898-1, they shall withstand, without fracture, the minimum ultimate tensile loads given in Table 3. If tested to failure, the fracture may occur in the threaded section, the head, the shank or at the head/shank junction.

47、 dBecause of their head configurations, it is possible for these screws to not meet the minimum ultimate tensile loads specified in ISO 3506-1. They shall nevertheless meet the other material and property requirements for the respective steel grade specified in ISO 3506-1. In addition, when full-siz

48、e screws are tensile tested in accordance with ISO 3506-1, they shall withstand, without fracture, the minimum ultimate tensile loads given in Table 3. If tested to failure, the fracture may occur in the threaded section, the head, the shank or at the head/shank junction. For reduced minimum ultimate tensile load values determined on the basis of Rm,minand As,nomin accordance with property classes 70 and 80 of ISO 3506-1, see Table 3. eElectroplating should be

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