Historical
ISO 3316:1996
Assembly tools for screws and nuts - Attachments for hand-operated square drive socket wrenches - Dimensions and tests
Applies to attachments for hand-operated square drive socket wrenches as listed under the numbers 203 to 206 in ISO 1703. Specifies overall dimensions, Rockwell hardness values, minimum torsional strength values, designation and marking.
International Organization for Standardization [iso]