ISO INTERNATIONAL STANDARD 7040 Third edition 2012-12-15 Prevailing torque type hexagon regular nuts (with non-metallic insert) Property classes 5, 8 and 10 Ecrous hexagonaux normaux autofreinés (a anneau non métallique) - Classes de qualite 5, 8 et 10 Reference number ISO 7040:2012(E) ISO @ISO2012 ISO 7040:2012(E) COPYRiGHTPROTECTEDDOCUMENT ISO2012 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 either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Case postale 56 · CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyright@iso.org Web www.iso.org Published in Switzerland = @ ISO 2012 - All rights reserved ISO 7040:2012(E) Contents Page Foreword 1 Scope. 2 Normative references 1 3 Dimensions. 4 Requirements and reference International Standards .3 5 Designation 3 Bibliography. ISO 2012 - All rights reserved ili