KS ISO 10103:2018

Assembly tools for screws and nuts - Double-headed, flat and offset, box wrenches.

Specifies the minimal overall length and the maximum head thickness for double-headed, flat and offset, box wrenches complying with the test torque given by the formula M =1,25 M, where M is the test torque, series C, of ISO 1711: 1975/ Amd. 1: 1982.