ISO 262 INTERNATIONAL STANDARD. ISO general purpose metric screw threads Selected sizes for screws, bolts and nuts

Transcription

1 INTERNATIONAL STANDARD ISO general purpose metric screw threads Selected sizes for screws, bolts and nuts A ISO 6 Second edition Filetages métriques ISO pour usages généraux Sélection de dimensions pour la boulonnerie Reference number ISO 6:998(E)

2 ISO 6:998(E) Foreword ISO (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 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 Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted 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 6 was prepared by Technical Committee ISO/TC, Screw threads, Subcommittee SC, Basic data. This second edition cancels and replaces the first edition (ISO 6:97) which has been technically revised. ISO 998 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Organization for Standardization Case postale 56 CH- Genève 0 Switzerland Internet iso@iso.ch Printed in Switzerland ii

3 INTERNATIONAL STANDARD ISO ISO general purpose metric screw threads Selected sizes for screws, bolts and nuts Scope ISO 6:998(E) This International Standard specifies selected sizes for screws, bolts and nuts in the diameter range from mm to 6 mm of ISO general purpose metric screw threads (M) having basic profile according to ISO 68-. These selected sizes are recommended also for general engineering use. These screw threads are selected from ISO 6. For thread designations see ISO Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 68-:998, ISO general purpose screw threads Basic profile Part : Metric screw threads. ISO 6:998, ISO general purpose metric screw threads General plan. ISO 965-:998, ISO general purpose metric screw threads Tolerances Part : Principles and basic data. ISO 508:98, Cylindrical screw threads Vocabulary. Definitions For the purposes of this International Standard, the definitions given in ISO 508 apply.

4 ISO 6:998(E) Selected sizes See table. Nominal diameter D, d Table Dimensions in millimetres Pitch P st choice nd choice coarse fine,,6, ,,8,5 0,5 0,5 0, 0,5 0,5 0, 0,5 0,5 0,6 0,7 0, ,75,5,5,5,5,5,5, ,5 5,5 6 ISO

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6 ISO 6:998(E) ICS.00.0 Descriptors: screw threads, ISO metric threads, screws, bolts, nuts (fasteners), form specifications, dimensions, diameters, thread pitch. Price based on pages ISO