www bzfxw com BRITISH STANDARD BS EN 27434 1992 ISO 7434 1983 Slotted set screws with cone point The European Standard EN 27434 1992 has the status of a British Standard UDC 621 882 219 71 092 5 BS EN[.]
BRITISH STANDARD Slotted set screws with cone point The European Standard EN 27434:1992 has the status of a British Standard UDC 621.882.219.71.092.5 BS EN 27434:1992 ISO 7434:1983 BS EN 27434:1992 Cooperating organizations The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the national standards organizations of the following countries: This British Standard, having been prepared under the direction of the General Mechanical Engineering Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 15 October 1992 © BSI 11-1999 The following BSI references relate to the work on this standard: Committee reference GME/9 Draft for comment 82 70266 DC ISBN 580 21295 Austria Oesterreichisches Normungsinstitut Belgium Institut belge de normalisation Denmark Dansk Standardiseringsraad Finland Suomen Standardisoimisliito, r.y France Association franỗaise de normalisation Germany Deutsches Institut für Normung e.V Greece Hellenic Organization for Standardization Iceland Technological Institute of Iceland Ireland National Standards Authority of Ireland Italy Ente Nazionale Italiano di Unificazione Luxembourg Inspection du Travail et des Mines Netherlands Nederlands Normalisatie-instituut Norway Norges Standardiseringsforbund Portugal Instituto Portugs da Qualidade Spain Asociación Espola de Normalización y Certificación Sweden Standardiseringskommissionen i Sverige Switzerland Association suisse de normalisation United Kingdom British Standards Institution Amendments issued since publication Amd No Date Comments BS EN 27434:1992 Contents Cooperating organizations National foreword Foreword Text of EN 27434 National annex NA (informative) Committees responsible National annex NB (informative) Cross-references © BSI 11-1999 Page Inside front cover ii Inside back cover Inside back cover i BS EN 27434:1992 National foreword This British Standard has been prepared under the direction of the General Mechanical Engineering Standards Policy Committee and is the English language version of EN 27434:1992 Slotted set screws with cone point, published by the European Committee for Standardization (CEN) It is identical with ISO 7434:1983, published by the International Organization for Standardization (ISO) EN 27434:1992 was produced as a result of international discussions in which the United Kingdom took an active part BS 4219-2:1985 which was identical with ISO 7434:1983 is now superseded by this British Standard and has been withdrawn in accordance with the CEN/CENELEC Internal Regulations A British Standard does not purport to include all the necessary provisions of a contract Users of British Standards are responsible for their correct application Compliance with a British Standard does not of itself confer immunity from legal obligations Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages to 6, an inside back cover and a back cover This standard has been updated (see copyright date) and may have had amendments incorporated This will be indicated in the amendment table on the inside front cover ii © BSI 11-1999 EUROPEAN STANDARD EN 27434 NORME EUROPÉENNE July 1992 EUROPÄISCHE NORM UDC 621.882.219.71.092.5 Descriptors: Fasteners, screws, set screws, specifications, dimensions, dimensional tolerances, designation English version Slotted set screws with cone point (ISO 7434:1983) Vis sans tête, fendues, bout pointu (ISO 7434:1983) Gewindestifte mit Schlitz und Spitze (ISO 7434:1983) ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ This European Standard was approved by CEN on 1992-07-17 CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member This European Standard exists in three official versions (English, French, German) A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom CEN European Committee for Standardization Comité Européen de Normalisation Europäisches Komitee für Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels © 1992 Copyright reserved to CEN members Ref No EN 27434:1992 E EN 27434:1992 Foreword In 1992, CEN Technical Committee CEN/TC 185 “Threaded and non threaded mechanical fasteners and accessories” the secretariat of which is held by DIN decided to submit the International Standard ISO 7434:1983 “Slotted set screws with cone point” to the formal vote procedure The result was positive In the countries bound to implement this European Standard a national standard identical to this European Standard shall be published at the latest by 1993-01-31 and conflicting national standards shall be withdrawn at the latest by 1993-01-31 According to the CEN/CENELEC Common Rules the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Spain, Portugal, Sweden, Switzerland and United Kingdom Contents Foreword Scope and field of application References Dimensions Specifications and reference International Standards Designation Page 3 5 ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ © BSI 11-1999 EN 27434:1992 Scope and field of application This International Standard specifies the characteristics of slotted set screws with cone point and thread sizes from M 1,2 to M 12 inclusive and product grade A If other specifications are required, it is recommended that they should be selected from existing International Standards, for example ISO 261, ISO 888, ISO 898, ISO 965, ISO 3506, ISO 4759-1 References ISO 225, Fasteners — Bolts, screws, studs and nuts — Symbols and designations of dimensions ISO 261, ISO general purpose metric screw threads — General plan ISO 888, Bolts, screws and studs — Nominal lengths, and thread lengths for general purpose bolts ISO 898, Mechanical properties of fasteners ISO 965, ISO general purpose metric screw threads — Tolerances ISO 3269, Fasteners — Acceptance inspection1) ISO 3506, Corrosion-resistant stainless steel fasteners — Specifications ISO 4042, Threaded components — Electroplated coatings components1) ISO 4753, Fasteners — Ends of parts with external metric ISO thread ISO 4759-1, Tolerances for fasteners — Part 1: Bolts, screws and nuts with thread diameters W 1,6 and u 150 mm and product grades A, B and C ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ 1) At present at the stage of draft © BSI 11-1999 EN 27434:1992 Dimensions ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ Sizes in brackets should be avoided if possible P = pitch of the thread 3) u M5 no flat part on the cone required; the point may be slightly rounded 4) Min and max values according to ISO 4759-1, but rounded to one decimal place 1) 2) © BSI 11-1999 EN 27434:1992 Specifications and reference International Standards Steel Material Thread Mechanical properties Tolerances Tolerance Stainless steel 6g International Standards ISO 261, ISO 965 Property class 14H, 22H A1 – 50 International Standards ISO 898-5 ISO 3506 Product grade International Standard Non-ferrous metal a A ISO 4759-1 Plain Finish Acceptability a Requirements for electroplating are covered in ISO 4042 If different electroplating requirements are desired or if requirements are needed for other finishes, they should be negotiated between supplier and customer The acceptance procedure is covered in ISO 3269 Will be covered in a future International Standard Designation ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ Example for the designation of a slotted set screw with cone point, thread size d = M5, nominal length l = 12 mm and property class 14H: Set screw ISO 7434 – M5 × 12 – 14H © BSI 11-1999 ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ blank BS EN 27434:1992 National annex NA (informative) Committees responsible The United Kingdom participation in the preparation of this European Standard was entrusted by the General Mechanical Engineering Standards Policy Committee (GME/-) to Technical Committee GME/9, upon which the following bodies were represented: BEAMA Ltd British Constructional Steelwork Association Ltd British Industrial Fasteners Federation British Railways Board British Steel Industry British Steel Industry (Wire Section) Gauge and Tool Makers’ Association Ministry of Defence Society of Motor Manufacturers and Traders Ltd Washer Manufacturers’ Association of Great Britain The following bodies also participated in the preparation of the standard, through subcommittees and panels: British Furniture Manufacturers’ Federation British Independent Steel Producers’ Association National Association of Fastener Stockholders ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ National annex NB (informative) Cross-references Publication referred to Corresponding British Standard ISO 225:1983 BS EN 20225:1992 Fasteners — Bolts, screws, studs and nuts — Symbols and designations of dimensions BS 3643 ISO metric screw threads Part 1:1981 Principles and basic data BS 7345:1990 Specification for nominal lengths of bolts, screws and studs and thread lengths for general purpose bolts BS 6105:1981 Specification for corrosion-resistant stainless steel fasteners BS 6567:1985 Specification for ends of fasteners with external metric ISO thread BS 6322 Tolerances for fasteners Part 1:1982 Specification for tolerances of bolts, screws and nuts with thread diameters U 1.6 mm and k 150 mm and product grades A, B and C ISO 261:1973 ISO 888:1976 ISO 3506:1979 ISO 4753:1983 ISO 4759-1:1978 © BSI 11-1999 BS EN 27434:1992 ISO 7434:1983 BSI — British Standards Institution BSI is the independent national body responsible for preparing British Standards It presents the UK view on standards in Europe and at the international level It is incorporated by Royal Charter Revisions British Standards are updated by amendment or revision Users of British Standards should make sure that they possess the latest amendments or editions It is the constant aim of BSI to improve the quality of our products and services We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover Tel: 020 8996 9000 Fax: 020 8996 7400 BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Customer Services Tel: 020 8996 9001 Fax: 020 8996 7001 In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as British Standards, unless otherwise requested Information on standards ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ BSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to Exporters Service Various BSI electronic information services are also available which give details on all its products and services Contact the Information Centre Tel: 020 8996 7111 Fax: 020 8996 7048 Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards For details of these and other benefits contact Membership Administration Tel: 020 8996 7002 Fax: 020 8996 7001 Copyright Copyright subsists in all BSI publications BSI also holds the copyright, in the UK, of the publications of the international standardization bodies Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means – electronic, photocopying, recording or otherwise – without prior written permission from BSI This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained BSI 389 Chiswick High Road London W4 4AL If permission is granted, the terms may include royalty payments or a licensing agreement Details and advice can be obtained from the Copyright Manager Tel: 020 8996 7070