BS ISO 3318:2016 BSl Standards Publication Assembly tools for screws and nuts Open-ended wrenches, box wrenches and combination wrenches Maximum widths of heads bsi. BS ISO 3318:2016 BRITISH STANDARD National foreword This British Standard is the UK implementation of ISO 3318:2016. The UK participation in its preparation was entrusted to Technical Committee MTE/15, Hand Tools. 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. @The British Standards Institution 2016. Published by BSI Standards Limited 2016 ISBN9780580899959 ICS 25.140.30 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 December 2016. Amendments/corrigenda issued since publication Date Text affected ISO INTERNATIONAL 3318 STANDARD Fifth edition 2016-12-15 Assembly tools for screws and nuts Open-ended wrenches, box wrenches and combination wrenches Maximum widths of heads Outils de manceuvre pour vis et écrous-Cles a fourche, cles polygonaleset clésmixtes-Largeursmaximalesd'encombrement destétes Referencenumber IS03318:2016(E) Tso @IS02016