ISO 3316:2018 Preview

Assembly tools for screws and nuts -- Attachments for hand-operated square drive socket wrenches -- Dimensions and tests

This document applies to attachments for hand-operated square drive socket wrenches.

NOTE 1 The attachments for hand-operated square drive socket wrenches covered by this standard are the ones identified in ISO 1703:2018 under reference No. 5 1 00 03 0, 5 1 00 04 0, 5 1 00 04 1 and 5 1 00 05 0.

It specifies

a) the overall dimensions;

b) the minimum Rockwell hardness value for their driving squares;

c) the method of torque testing;

d) the minimum torsional strength values;

e) the designation; and

f) the marking.

NOTE 2 For the specification of square adaptors with a hexagon or cylindrical flat drive, for power socket wrenches, see ISO 3317.


General information

  • Status :  Published
    Publication date : 2018-05
  • Edition : 5
    Number of pages : 7
  • :
    ISO/TC 29/SC 10
    Assembly tools for screws and nuts, pliers and nippers
  • 25.140.30
    Hand-operated tools

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