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Sockets

Fastener assembly tool standards cover the tools, and their variable parts, that handle the fasteners during their installation. Given the variability within screwdrivers, starting from whether they are machine or hand operated, and continuing down all the way to the bits that actually make contact with the fastener, standardization promotes interchangeability between tools and parts of different manufacturers, and fasteners of yet a different manufacturer. These standards are related to the specifications of sockets and their corresponding tools.

ISO 1711-2:2019

Assembly tools for screws and nuts - Technical specifications - Part 2: Machine-operated sockets (impact)

This document specifies hardness and minimum torsional strength for machine-operated square drive sockets in accordance with ISO 2725-2 intended for use with impact wrenches. EXAMPLE Reference nos. 2 2 02 01 0; 2 2 02 02 0; 5 2 00 04 0. NOTE The sockets mentioned above are listed under their respective reference numbers in ISO 1703.

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ISO 2725-1:2017

Assembly tools for screws and nuts - Square drive sockets - Part 1: Hand-operated sockets

ISO 2725-1:2017 specifies dimensions, the designation, and the marking of hand-operated square drive sockets with operating end and having a hexagonal or double hexagonal form in accordance with ISO 1174 1. NOTE Hand-operated square drive sockets covered by this document are the ones identified in ISO 1703 under reference numbers 2 1 02 01 0. ISO 2725-1:2017 does not cover technical specifications for these products. Technical specifications are given in ISO 1711 1.

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ISO 2725-2:2017

Assembly tools for screws and nuts - Square drive sockets - Part 2: Machine-operated sockets (impact)

ISO 2725-2:2017 specifies dimensions, designation, and marking of machine-operated impact square drive sockets with operating end having a hexagonal or double hexagonal form in accordance with ISO 1174 2. NOTE Machine-operated impact square drive sockets covered by this document are the ones identified in ISO 1703 under reference numbers 2 2 02 01 0. ISO 2725-2:2017 does not cover technical specifications for these products. Technical specifications are given in ISO 1711 2.

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ISO 2725-3:2017

Assembly tools for screws and nuts - Square drive sockets - Part 3: Machine-operated sockets (non-impact)

ISO 2725-3:2017 specifies dimensions, designation, and marking of machine-operated non-impact square drive sockets. NOTE Machine-operated non-impact square drive sockets covered by this document are the ones identified in ISO 1703 under reference numbers 2 2 02 01 0.

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ISO 2936:2014

Assembly tools for screws and nuts - Hexagon socket screw keys

ISO 2936:2014 specifies the dimensions, the method of test, the designation, and the marking of hexagon socket screw keys. It also specifies the minimum values of Rockwell hardness that are to be met. Its specifications apply for tightening of hexagon socket screws for property class less than or equal to 12,9 as defined in ISO 898 1 and for tightening of socket set screws as defined in ISO 898 5.

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