ISO INTERNATIONAL STANDARD 8741 Second edition 1997-11-01 Grooved pins -- Half-length reverse-taper grooved Goupilles cannelees a cannelures progressives renversees sur la moitie dela longueurnondebouchantes This materiai is reproduced from iso documents under internationai Organization for Standardization (IsO) Copyright License number IHS/Icc/1996. Not for resale. No part of these Iso documents may be reproduced in anyform,electronic retrievalsystemor otherwise,exceptas allowed in the copyright law of the country of use, or with the prior written consent of Iso (Case postale 56, 1211 Geneva 20, Switzerland, Fax +41 22 734 10 79), IHS or the Iso Licensor's members. so Reference number ISO 8741:1997(E) Copyright International Organization for Standardization No reproduction or networking permitted without license from IHS Not for Resale ISO 8741:1997(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. 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 8741 was prepared by Technical Committee ISO/TC 2, Fasteners. This second edition cancels and replaces the first edition (IsO 8741:1986), which has been technically revised. @1SO1997 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. Intemational Organization for Standardization Case postale 56 : CH-1211 Geneve 20 . Switzerland Intemet [email protected] X.400 C=ch; a=400net; p=iso; o=isocs; S=central Printed in Switzerland ii Copyright International Organization for Standardization ed withoutlicense fromIHS Not for Resale ISO 8741:1997(E) INTERNATIONAL STANDARD ISO Grooved pins -- Half-length reverse taper grooved 1 Scope This International Standard specifies the characteristics of half-length reverse taper grooved pins made of steel or austenitic stainless steel which have three equally spaced grooves impressed longitudinally on their exterior surface, with nominal diameter, d, from 1,5 mm to 25 mm inclusive. The displaced material to each side of the grooves forming an expanded diameter d, which is larger than the equal to the nominal diameter d, (see clause 4). 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of app!w.ing the most recent editions of the standards indicated below. Members of IEC and IsO maintainregistersutcurrentlyvalidInternationalStandards. Is0 3269:1988,Fasteners-Acceptance inspection. Is0 3506-1:1997, Co'rosion-resistant stainless steel fasteners - Part 1: Bolts, screws and studs. Iso 4042:-", Fasteners -Electroplated coatings. ISo 8749:1986, Pins and grooved pins - Shear test. Iso 9717:1990, Phosphate conversion coatings for metals - Method of specifying requirements. 3 Dimensions See figure 1 and tabie 1. d 1) Chamfer permissible 2) The grooving angle 7oo applies only to grooved pins made from steel as shown in clause 5. The grooving angle may be modified depending on resilience of material. Figure 1 1)To be published. (Revision of ISO 4042:1989) C