1、BS ISO 2902:2016ISO metric trapezoidal screwthreads General planBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS ISO 2902:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 2902:2016.The UK participation in its preparation w
2、as 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 Briti
3、sh Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 92687 7 ICS 21.040.10 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 30 Sept
4、ember 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS ISO 2902:2016 ISO 2016ISO metric trapezoidal screw threads General planFiletages mtriques trapzodaux ISO Vue densembleINTERNATIONAL STANDARDISO2902Second edition 2016-09-01Reference numberISO 2902:2016(E)BS ISO 2
5、902:2016ISO 2902:2016(E)ii ISO 2016 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in SwitzerlandAll rights reserved. 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
6、photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO 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 2
7、2 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 2902:2016ISO 2902:2016(E)Foreword iv1 Scope . 12 Normative references 13 Terms and definitions . 14 Choice of diameter and pitch . 15 Diameter and pitch combinations 16 Designation 1Bibliography 4 ISO 2016 All rights reserved iiiConten
8、ts PageBS ISO 2902:2016ISO 2902:2016(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 member body
9、 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 Electrotec
10、hnical 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. In particular the different approval criteria needed for the different types of ISO
11、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 elements of this document may be the subject of patent rights. ISO shall not be held respo
12、nsible 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 (see www.iso.org/patents).Any trade name used in this document is information given
13、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 adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trad
14、e (TBT) see the following URL: www.iso.org/iso/foreword.html.The committee responsible for this document is ISO/TC 1, Screw threads.This second edition cancels and replaces the first edition (ISO 2902:1977), Clause 4 of which has been technically revised (now Clause 6).iv ISO 2016 All rights reserve
15、dBS ISO 2902:2016INTERNATIONAL STANDARD ISO 2902:2016(E)ISO metric trapezoidal screw threads General plan1 ScopeThis document specifies a series of diameter and pitch combinations for ISO metric trapezoidal screw threads having the basic and design profiles according to ISO 2901.This document is chi
16、efly applicable to traversing threads for traversing motion on machines, tools, etc. It can also be used for fastening threads.2 Normative referencesThe 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 date
17、d references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 2903, ISO metric trapezoidal screw threads Tolerances3 Terms and definitionsFor the purposes of this document, the terms and definitions given in
18、 ISO 5408 apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obp4 Choice of diameter and pitchChoose, for preference, diamet
19、ers in column 1 of Table 1 and, if necessary, in column 2, and then in column 3.The diameters in column 3 shall not be used for new designs.For the diameter selected, choose one of the pitches shown on the corresponding line, for preference, the pitches within broad frames.If it is necessary to use
20、a trapezoidal thread with a pitch other than shown in the table, choose one of the pitches assigned to a neighbouring diameter.5 Diameter and pitch combinationsThe nominal diameter and pitch combinations are specified in Table 1.6 DesignationA screw thread in conformity with this document shall be d
21、esignated in accordance with ISO 2903. ISO 2016 All rights reserved 1BS ISO 2902:2016ISO 2902:2016(E)Table 1 Nominal diameter and pitch combinationsDimensions in millimetresNominal diametersD, dPitchesPCol. 1 Col. 2 Col. 3 44 40 36 32 28 24 22 20 18 16 14 12 10 9 8 7 6 5 4 3 2 1,58 1,59 2 1,510 2 1,
22、511 3 212 3 214 3 216 4 218 4 220 4 222 8 5 324 8 5 326 8 5 328 8 5 330 10 6 332 10 6 334 10 6 336 10 6 338 10 7 340 10 7 342 10 7 344 12 7 346 12 8 348 12 8 350 12 8 352 12 8 355 14 9 360 14 9 365 16 10 470 16 10 475 16 10 480 16 10 485 18 12 490 18 12 495 18 12 4100 20 12 4105 20 12 4110 20 12 411
23、5 22 14 6120 22 14 62 ISO 2016 All rights reservedBS ISO 2902:2016ISO 2902:2016(E)Table 1 (continued)Dimensions in millimetresNominal diametersD, dPitchesPCol. 1 Col. 2 Col. 3 44 40 36 32 28 24 22 20 18 16 14 12 10 9 8 7 6 5 4 3 2 1,5125 22 14 6130 22 14 6135 24 14 6140 24 14 6145 24 14 6150 24 16 6
24、155 24 16 6160 28 16 6165 28 16 6170 28 16 6175 28 16 8180 28 18 8185 32 18 8190 32 18 8195 32 18 8200 32 18 8210 36 20 8220 36 20 8230 36 20 8240 36 22 8250 40 22 12260 40 22 12270 40 24 12280 40 24 12290 44 24 12300 44 24 12 ISO 2016 All rights reserved 3BS ISO 2902:2016ISO 2902:2016(E)Bibliograph
25、y1 ISO 2901, ISO metric trapezoidal screw threads Basic and design profiles2 ISO 5408, Screw threads Vocabulary4 ISO 2016 All rights reservedBS ISO 2902:2016BS ISO 2902:2016ISO 2902:2016(E) ISO 2016 All rights reservedICS 21.040.10Price based on 4 pagesThis page deliberately left blankBSI is the nat
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