UNE 16-511-1991
Assembly tools for screws and nuts. Attachments for hand-operated square drive socket wrenches. Torque testing

Standard No.

UNE 16-511-1991

Release Date

1991

Published By

ES-AENOR

Scope

Example of designation of an adapter with a 12.5 mm male square and a 20 mm female square: 12.5 x 20 adapter UNE 16-511