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. ICS 21.040.10 ISBN 0-626-14725-5 SANS 1700-2-3:2003 Edition 1 ISO 262:1998 Edition 2 SOUTH AFRICAN NATIONAL STANDARD Fasteners Part 2: Screw threads Sect
4、ion 3: ISO general purpose metric screw threads Selected sizes for screws, bolts and nuts This national standard is the identical implementation of ISO 262:1998 and is adopted with the permission of the International Organization for Standardisation. Published by Standards South Africa 1 dr lategan
5、road groenkloof private bag x191 pretoria 0001 tel: 012 428 7911 fax: 012 344 1568 international code + 27 12 www.stansa.co.za Standards South Africa 2003 SANS 1700-2-3:2003 Edition 1 ISO 262:1998 Edition 2 Table of changes Change No. Date Scope National foreword This South African standard was appr
6、oved by National Committee STANSA TC 5120.01, Screw threads and fasteners, in accordance with procedures of Standards South Africa, in compliance with annex 3 of the WTO/TBT agreement. AReference numberISO 262:1998(E)INTERNATIONALSTANDARDISO262Second edition1998-12-15ISO general purpose metric screw
7、threads Selected sizes for screws,bolts and nutsFiletages mtriques ISO pour usages gnraux Slection de dimensionspour la boulonnerieISO 262:1998(E) ISO 1998All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electroni
8、cor mechanical, including photocopying and microfilm, without permission in writing from the publisher.International Organization for StandardizationCase postale 56 CH-1211 Genve 20 SwitzerlandInternet isoiso.chPrinted in SwitzerlandiiForewordISO (the International Organization for Standardization)
9、is a worldwide federation of national standards bodies (ISOmember bodies). The work of preparing International Standards is normally carried out through ISO technicalcommittees. Each member body interested in a subject for which a technical committee has been established hasthe right to be represent
10、ed on that committee. International organizations, governmental and non-governmental, inliaison with ISO, also take part in the work. ISO collaborates closely with the International ElectrotechnicalCommission (IEC) on all matters of electrotechnical standardization.Draft International Standards adop
11、ted 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.International Standard ISO 262 was prepared by Technical Committee ISO/TC 1, Screw threads, SubcommitteeSC 1,
12、 Basic data.This second edition cancels and replaces the first edition (ISO 262:1973) which has been technically revised.INTERNATIONAL STANDARD ISO ISO 262:1998(E)1ISO general purpose metric screw threads Selectedsizes for screws, bolts and nuts1 ScopeThis International Standard specifies selected s
13、izes for screws, bolts and nuts in the diameter range from 1 mm to64 mm of ISO general purpose metric screw threads (M) having basic profile according to ISO 68-1.These selected sizes are recommended also for general engineering use.These screw threads are selected from ISO 261.For thread designatio
14、ns see ISO 965-1.2 Normative referencesThe following standards contain provisions which, through reference in this text, constitute provisions of thisInternational Standard. At the time of publication, the editions indicated were valid. All standards are subject torevision, and parties to agreements
15、 based on this International Standard are encouraged to investigate thepossibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintainregisters of currently valid International Standards.ISO 68-1:1998, ISO general purpose screw threads Basic profile
16、 Part 1: Metric screw threads.ISO 261:1998, ISO general purpose metric screw threads General plan.ISO 965-1:1998, ISO general purpose metric screw threads Tolerances Part 1: Principles and basic data.ISO 5408:1983, Cylindrical screw threads Vocabulary.3 DefinitionsFor the purposes of this Internatio
17、nal Standard, the definitions given in ISO 5408 apply.ISO 262:1998(E)ISO24 Selected sizesSee table 1.Table 1 Dimensions in millimetresNominal diameterD, dPitchP1st choice 2nd choice coarse fine11,21,40,250,250,31,621,80,350,350,42,533,50,450,50,64560,70,81810711,251,511,25 11216141,75221,51,51,51,252018222,52,52,52221,51,51,5243027333,52223633393,5442334248454,54,553335664526055,55,564444
