BS ISO 5408:2009 BRITISH STANDARD Screw threads - Vocabulary ICS 01.040.21; 21.040.01 BSi NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BritishStandards BSISO5408:2009 National foreword This British Standard is the UK implementation of IS05408:2009.It supersedes BS 6528:1984 which is withdrawn. The UK participation in its preparation was 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. Compliance with a British Standard cannot confer immunity fromlegal obligations. This British Standard Amendments/corrigendaissuedsincepublication was published under the authority ofthe Standards Policy and Strategy Date Comments Committee on 31 July 2009. BSI 2009 ISBN9780580626197 BS ISO 5408:2009 ISO INTERNATIONAL STANDARD 5408 NORME Second edition INTERNATIONALE Deuxieme édition 2009-06-15 Screw threads Vocabulary Filetages Vocabulaire Reference number Numero de reference ISO ISO 5408:2009(E/F) @ ISO 2009 BSISO5408:2009 ISO5408:2009(E/F) COPYRIGHTPROTECTEDDOCUMENT DOCUMENTPROTEGEPARCOPYRIGHT ISO2009 booklets, technical publications and journals for strictly educational or implementation purposes. The conditions for such reproduction are: that no modifications are made to the terms and definitions; that such reproduction is not permitted for dictionaries or similar publications offered for sale; and that this Intemational Standard is referenced as the source document. ISO's member body in the country of the requester. La reproduction des termes et des definitions contenus dans la presente Norme internationale est autorisee dans les manuels d'enseignement, les modes d'emploi, les publications et revues techniques destines exclusivement a I'enseignement ou a la mise en application. Les conditions d'une telle reproduction sont les suivantes: aucune modification n'est apportee aux termes et definitions; la reproduction n'est pas autorisee dans des dictionnaires ou publications similaires destines a la vente; la presente Norme internationale est citee comme document source. A la seule exception mentionnee ci-dessus, aucune partie de cette publication ne peut étre reproduite ni utilisee sous quelque forme que ce soit et par aucun procede, electronique ou mecanique, y compris la photocopie et les microfilms, sans 'accord ecrit de Iiso a I'adresse ci-apres ou du comite membre de I'lsO dans le pays du demandeur. ISO copyright office Case postale 56.CH-1211Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland/Publie en Suisse ii @ ISO 2009-All rights reserved/Tous droits reserves BS ISO 5408:2009 ISO5408:2009(E/F) Copyright notice This IsO document is a Draft International Standard and is copyright-protected by IsO. Except as permitted under the applicable laws of the user's country, neither this iso draft nor any extract from it may be photocopying, recording or otherwise, without prior written permission being secured. Requests for permission to reproduce should be addressed to either sO at the address below or IsO's member body in the country of the requester. ISO copyright office Casepostale56·CH-1211Geneva20 Tel. + 41 22 749 01 11 Fax +4122 749 09 47 E-mail [email protected] Web www.iso.org Reproduction may be subject to royalty payments or a licensing agreement. Violators may beprosecuted. Notice de droitd'auteur Ce document de I'sO est un projet de Norme internationale qui est protege par les droits d'auteur de I'lsO. soit et par aucun procede, électronique ou mecanique, y compris la photocopie, les enregistrements ou autres, sans autorisation ecrite prealable. Les demandes d'autorisation de reproduction doivent étre envoyees a I'isO a I'adresse ci-apres ou au comite membre de l'isO dans le pays du demandeur. ISO co