1、BS ISO 3318:2016Assembly tools for screws and nuts Open-ended wrenches, box wrenches and combination wrenches Maximum widths of headsBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS ISO 3318:2016 BRITISH STANDARDNational forewordThis British Standard is the UK impl
2、ementation of ISO 3318:2016. The UK participation in its preparation was entrusted to TechnicalCommittee MTE/15, Hand Tools.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
3、 contract. Users are responsible for its correct application. The British Standards Institution 2016. Published by BSI Standards Limited 2016ISBN 978 0 580 89995 9 ICS 25.140.30 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under
4、 the authority of the Standards Policy and Strategy Committee on 31 December 2016.Amendments/corrigenda issued since publicationDate Text affected ISO 2016Assembly tools for screws and nuts Open-ended wrenches, box wrenches and combination wrenches Maximum widths of headsOutils de manuvre pour vis e
5、t crous Cls fourche, cls polygonales et cls mixtes Largeurs maximales dencombrement des ttesINTERNATIONAL STANDARDISO3318Fifth edition2016-12-15Reference numberISO 3318:2016(E)ISO 3318:2016(E)ii ISO 2016 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in SwitzerlandAll rights res
6、erved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either I
7、SO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 3318:2016ISO 3318:2016(E)Foreword iv1 Scope . 12 Normative referenc
8、es 13 Terms and definitions . 14 Dimensions . 1Bibliography 4 ISO 2016 All rights reserved iiiContents PageBS ISO 3318:2016ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International
9、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 right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, al
10、so take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1.
11、In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elemen
12、ts of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received
13、(see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherenc
14、e to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.The committee responsible for this document is ISO/TC 29, Small tools, Subcommittee SC 10, Assembly tools for screws and nuts, pliers and nippers.This fift
15、h edition cancels and replaces the fourth edition (ISO 3318:2009), which has been technically revised with the following changes:a) revision of sizes covered in Table 1, with the addition of nominal widths across flats not covered byISO 272;b) the scope and title have been changed to also cover sing
16、le-headed wrenches;c) deletion of Clause 4 “Technical specifications”, as these are given in ISO 1711-1.ISO 3318:2016(E) iv ISO 2016 All rights reservedBS ISO 3318:2016 INTERNATIONAL STANDARD ISO 3318:2016(E)Assembly tools for screws and nuts Open-ended wrenches, box wrenches and combination wrenche
17、s Maximum widths of heads1 ScopeThis document specifies the maximum outside head dimensions for open-ended wrenches, box wrenches and combination wrenches. NOTE 1 The wrenches covered by this document are the ones identified in ISO 1703:2005 under reference nos. 1 1 01 02 0, 1 1 01 05 0, 1 1 01 06 0
18、, 1 1 02 03 0, 1 1 02 04 0, 1 1 02 05 0, 1 1 02 06 0, 1 1 02 01 0, 1 1 02 02 0 and 1 1 02 08 0.NOTE 2 Box wrenches can also be designated as ring wrenches.This document does not cover technical specifications for these products. Technical specifications are given in ISO 1711-1.2 Normative references
19、The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applie
20、s.ISO 691, Assembly tools for screws and nuts Wrench and socket openings Tolerances for general use3 Terms and definitionsNo terms and definitions are listed in this document.ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: availa
21、ble at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obp4 DimensionsSee Figures 1 and 2 and Table 1 for the dimensions.The drawings are schematic and are not intended to specify a given design; only the dimensions given shall be complied with.Figure 1 Open-
22、end ISO 2016 All rights reserved 1BS ISO 3318:2016Figure 2 Box endTable 1 Maximum outside head dimensionsNominal width across flatssab1bmmmax.b2cmmmax.3,2 14 74 15 85 18 105,5 19 10,56d20 11,57 22 12,58 24 149d25 1610 28 1711 30 18,512d31 2013 34 21,514d36 2315 39 24,516 41 2617d42 2718 45 2919d47 3
23、120 49 31,521 51 33,522d53 3523 55 36,524 57 3825d59 39,527 64 42,530 70 4732d74 5034 78 5336 83 56aTolerances in accordance with ISO 691.bb1max 2,1 s + 7 s.cb2max 1,5 s + 2 s.dNominal width across flats not covered by ISO 272.ISO 3318:2016(E) 2 ISO 2016 All rights reservedBS ISO 3318:2016 ISO 3318:
24、2016(E)Nominal width across flatssab1bmmmax.b2cmmmax.41 93 63,546 104 7150 112 7755 123 84,560 133 9265 140 102aTolerances in accordance with ISO 691.bb1max 2,1 s + 7 s.cb2max 1,5 s + 2 s.dNominal width across flats not covered by ISO 272.Table 1 (continued) ISO 2016 All rights reserved 3BS ISO 3318
25、:2016Bibliography1 ISO 272, Fasteners Hexagon products Widths across flats2 ISO 1703:2005, Assembly tools for screws and nuts Designation and nomenclature3 ISO 1711-1, Assembly tools for screws and nuts Technical specifications Part 1: Hand-operated wrenches and socketsISO 3318:2016(E) 4 ISO 2016 Al
26、l rights reservedBS ISO 3318:2016 BS ISO 3318:2016ISO 3318:2016(E) ISO 2016 All rights reservedICS 25.140.30Price based on 4 pagesBS ISO 3318:2016 This page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-related publications, informati
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