1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-20973-5 SANS 1700-9-3:2008Edition 2ISO 7380:2004Edition 3SOUTH AFRICAN NATIONAL STANDARD Fasteners Part 9: Hexagon socket head screws Sect
4、ion 3: Hexagon socket button head screws This national standard is the identical implementation of ISO 7380:2004 and is adopted with the permission of the International Organization for Standardization. Published by Standards South Africa 1 dr lategan road groenkloof private bag x191 pretoria 0001 t
5、el: 012 428 7911 fax: 012 344 1568 international code + 27 12 www.stansa.co.za Standards South Africa SANS 1700-9-3:2008 Edition 2 ISO 7380:2004 Edition 3 Table of changes Change No. Date Scope National foreword This South African standard was approved by National Committee StanSA TC 5120.01, Screw
6、threads and fasteners, in accordance with procedures of Standards South Africa, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was published in April 2008. This SANS document supersedes SANS 1700-9-3:1998 (edition 1). INTERNATIONALSTANDARDISO7380Third edition2004-01-15Refere
7、nce numberISO 7380:2004(E) ISO 2004Hexagon socket button head screwsVis tte cylindrique bombe plate six pans creuxSANS 1700-9-3:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 7380:2004(E)ii ISO 2004 All rights reservedPDF disclaimerT
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12、copyright officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandSANS 1700-9-3:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 7380:2004(E) ISO 2
13、004 All rights reserved iiiForewordISO (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 ISOtechnical committees. Each member body interested in
14、 a subject for which a technical committee has beenestablished has the right to be represented on that committee. International organizations, governmental andnon-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the InternationalElectrotechnical Commission
15、 (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 Standardsadopted by the technical commit
16、tees are circulated to the member bodies for voting. Publication as anInternational 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 patentrights. ISO shall not be he
17、ld responsible for identifying any or all such patent rights.ISO 7380 was prepared by Technical Committee ISO/TC 2, Fasteners.This third edition cancels and replaces the second edition (ISO 7380:1997), which has been technically revised.SANS 1700-9-3:2008This s tandard may only be used and printed b
18、y approved subscription and freemailing clients of the SABS .ivSANS 1700-9-3:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .INTERNATIONAL STANDARD ISO 7380:2004(E) ISO 2004 All rights reserved 1Hexagon socket button head screws1ScopeThis
19、 International Standard specifies the characteristics of hexagon socket button head screws with threadsfrom M3 up to and including M16, with product grade A.NOTE Particular attention is drawn to the note in Table 2 and to Table 3 concerning the limitation on ultimate tensile load.If, in special case
20、s, specifications other than those listed in this International Standard are required, they shouldbe selected from existing International Standards, e.g. ISO 261, ISO 888, ISO 898-1, ISO 965-2 andISO 4759-1.2 Normative referencesThe following referenced documents are indispensable for the applicatio
21、n of this document. For datedreferences, 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 designations of dimensionsISO 261, ISO general-purpose metric
22、screw threads General planISO 888, Bolts, screws and studs Nominal lengths, and thread lengths for general purpose boltsISO 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel Part 1: Bolts, screws andstudsISO 965-2, ISO general purpose metric screw threads Tolerances Part
23、 2: Limits of sizes for generalpurpose external and internal screw threads Medium qualityISO 965-3, ISO general purpose metric screw threads Tolerances Part 3: Deviations for constructionalscrew threadsISO 3269, Fasteners Acceptance inspectionISO 4042, Fasteners Electroplated coatingsISO 4753, Faste
24、ners Ends of parts with external ISO metric threadISO 4759-1, Tolerances for fasteners Part 1: Bolts, screws, studs and nuts Product grades A, B and CISO 6157-1, Fasteners Surface discontinuities Part 1: Bolts, screws and studs for general requirementsISO 6157-3, Fasteners Surface discontinuities Pa
25、rt 3: Bolts, screws and studs for special requirementsISO 8992, Fasteners General requirements for bolts, screws, studs and nutsISO 10683, Fasteners Non-electrolytically applied zinc flake coatingsISO 23429, Gauging of hexagon socketsSANS 1700-9-3:2008This s tandard may only be used and printed by a
26、pproved subscription and freemailing clients of the SABS .ISO 7380:2004(E)2 ISO 2004 All rights reserved3 DimensionsSee Figure 1 and Table 1.Symbols and designations of dimensions are defined in ISO 225.Alternative form of socket permissibleFor broached sockets which are at the maximum limitof size
27、the overcut resulting from drilling shall notexceed of the length of any flat of the socket whichis .aA slight rounding or countersink at the mouth of the socket is permissible.bPoint chamfered or for sizes M4 and below “as rolled” according to ISO 4753.cIncomplete thread .Figure 11/3e/2u lessorequa
28、lslant 2PSANS 1700-9-3:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 7380:2004(E) ISO 2004 All rights reserved 3Table 1 DimensionsDimensions in millimetresThread ( ) M3 M4 M5 M6 M8 M10 M12 M16a0,5 0,7 0,8 1 1,25 1,5 1,75 2max. 1,0 1
29、,4 1,6 2 2,50 3,0 3,50 4min. 0,5 0,7 0,8 1 1,25 1,5 1,75 2max. 3,6 4,7 5,7 6,8 9,2 11,2 14,2 18,2max. 5,7 7,60 9,50 10,50 14,00 17,50 21,00 28,00min. 5,4 7,24 9,14 10,07 13,57 17,07 20,48 27,48b, cmin. 2,303 2,873 3,443 4,583 5,723 6,863 9,149 11,429max. 1,65 2,20 2,75 3,3 4,4 5,5 6,60 8,80min. 1,40
30、 1,95 2,50 3,0 4,1 5,2 6,24 8,44min. 0,1 0,2 0,2 0,25 0,4 0,4 0,6 0,6cnom. 22,53456810max. 2,080 2,58 3,080 4,095 5,140 6,140 8,175 10,175min. 2,020 2,52 3,020 4,020 5,020 6,020 8,025 10,025min. 1,04 1,3 1,56 2,08 2,6 3,12 4,16 5,2min. 0,2 0,3 0,38 0,74 1,05 1,45 1,63 2,25dnom. min. max.65,766,2487,
31、718,2910 9,71 10,2912 11,65 12,3516 15,65 16,35 Range20 19,58 20,42 of25 24,58 25,42 commercial30 29,58 30,42 lengths35 34,5 35,540 39,5 40,545 44,5 45,550 49,5 50,5ais the pitch of the thread.b.cCombined gauging of socket dimensions and , see ISO 23429.dFor nominal lengths below the bottom stepped
32、line, the thread lengths, at the discretion of the manufacturer, may be between aminimum of and a maximum which is within off the head. Intermediate nominal lengths according to ISO 888 arepermissible.dPadadkekrstwlPemin= 1,14smines2d+ 12 mm 2PSANS 1700-9-3:2008This s tandard may only be used and pr
33、inted by approved subscription and freemailing clients of the SABS .ISO 7380:2004(E)4 ISO 2004 All rights reserved4 Requirements and reference International StandardsSee Tables 2 and 3.5 DesignationEXAMPLE A hexagon socket button head screw with thread M12 and nominal length and property class 12.9,
34、is designated as follows:Hexagon socket button head screw ISO 7380 - M12 40 - 12.9Table 2 Requirements and reference International StandardsMaterial SteelGeneral requirements International Standard ISO 8992ThreadTolerance6g for property classes 8.8 and 10.9; 5g6g for property class 12.9International
35、 Standards ISO 261, ISO 965-2, ISO 965-3Mechanical propertiesProperty classa8.8, 10.9, 12.9International Standard ISO 898-1TolerancesProduct grade AInternational Standard ISO 4759-1FinishAs processedRequirements for electroplating are covered in ISO 4042.Requirements for non-electrolytically applied
36、 zinc flake coatings are covered in ISO 10683.Surface discontinuitiesLimits for surface discontinuities are given in ISO 6157-1 and in ISO 6157-3 for property class 12.9.Acceptability Acceptance procedure is covered in ISO 3269.aBecause of their head configurations, these screws may not meet the min
37、imum ultimate tensile loads specified in ISO 898-1, whentested in accordance with test programme B. They shall nevertheless meet the other material and property requirements for the respectiveproperty class specified in ISO 898-1.In addition, when full-size screws are loaded using the type of testin
38、g fixture illustrated in 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.Table 3 Minimum ultimate tensile loads for hexagon so
39、cket button head screws( of the values specified in ISO 898-1)Thread ( )Property class8.8 10.9 12.9Minimum ultimate tensile loadNM3 3 220 4 180 4 190M4 5 620 7 300 8 560M5 9 080 11 800 13 800M6 12 900 16 700 19 600M8 23 400 30 500 35 700M10 37 100 48 200 56 600M12 53 900 70 200 82 400M16 100 000 130 000 154 00080 %dl = 40 mmSANS 1700-9-3:2008 Standards South AfricaThis s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .
