ISO INTERNATIONAL STANDARD 7913 Second edition NORME Deuxieme édition 1994-11-01 INTERNATIONALE Aerospace - Bolts and screws, metric - Tolerances of form and position Aéronautique et espace Vis metriques Tolérances de forme et de position ISO Reference number Numero de reference ISO7913:1994(E/F) No reproduction or networking permitted without license from IHS Not for Resale ISO7913:1994(E/F) Foreword (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 committes. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. liaison with IsO, also take part in the work. IsO collaborates closely with the International Electrotechnical ( Commission (IEC) on ail 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 memberbodies castingavote. International Standard ISO 7913 was prepared by Technical Com- mittee ISO/TC 20, Aircraft and space vehicles, Subcommittee SC 4, Aerospacefastenersystems. This second dedition cancels and replaces t the first edition (ISO 7913:1985),ofwhichitconstitutesatechnicalrevision. CISO 1994 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. / Droits de reproduction reserves. for Standardizatior No reproduction or networking permited without license from IHS Not for Resale @ ISO ISO7913:1994(E/F) Avant-propos L'ISO (Organisation i internationale denormalisation) est une fedération mondiale d'organismes nationaux de enormalisation (comites membres de I'isO). L'élaboration des Normes inter- nationales est en general confiee aux comites techniques de I'lsO. Chaque comite membre intéresse par une étude a le droit de faire partie du comite technique créé a cet effet. Les organisations internationales, ,gouvernementales et non gouvernementales, en liaison avec I'iso participent également aux travaux. L'lsO collabore etroitement avec Ta Commission électrotechnique internationale (CEl) en ce qui concerne la normalisation électrotechnique. Les projets de Normes internationales adoptes sparlescomités techniques sont soumis aux comités membres pour vote Leur 75% au moins des comites membres votants. Le Norme internationale ISO 7913 a été élaboree par le ecomite technique IsO/Tc20,Aéronautique et espace, sous-comite Sc 4, Elements de fixation pourconstructions aérospatiales. Cette deuxieme édition annule et remplace la premiere édition (IS0 7913:1985), dont elle constitue une révision technique. Copyright lntenational Organization for Standardization 用i No reproduction or networking permitted without license from IHS Not for Resale