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.

The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).

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The committee responsible for this document is ISO/TC 29, Small tools, Subcommittee SC 10, Assembly tools for screws and nuts, pliers and nippers.

This second edition cancels and replaces the first edition (ISO 2351‑3:2002), of which it constitutes a minor revision with the following changes:

— designation according to ISO 1703 has been included;
— references have been updated;
— minimum proof torque values in Table 2 have been corrected;
— relation of minimum proof torque and M_d _ISO 2936in Table 2 has been defined exactly.

ISO 2351 consists of the following parts, under the general title Assembly tools for screws and nuts — Machine-operated screwdriver bits:

— Part 1: Screwdriver bits for slotted head screws
— Part 2: Screwdriver bits for cross-recessed head screws
— Part 3: Screwdriver bits for hexagon socket screws

BS ISO 2351-3:2014

Assembly tools for screws and nuts. Machine-operated screwdriver bits - Screwdriver bits for hexagon socket screws

Current

Published:

28 Feb 2014