NA 121

DIN Standards Committee Tools and Clamping Devices

Standards [CURRENT]

DIN 79
Squares for operating spindles and operating elements

Title (German)

Vierkante für Spindeln und Bedienteile


This standard specifies the dimensions as well as tolerance classes and tolerances of internal and external squares used on or in operating element, for example, hand-wheels, crank handles or grips. In addition to dimensions and tolerances for various size classes of internal and external squares, specifications regarding the standard designation of these products are given in the DIN standard. This German standard has been prepared by Working Committee NA 121-06-01 AA "Bedienteile" ("Handles") of FWS.

Responsible national committee

NA 121-06-01 AA - Handles  

Edition 2013-02
Original language German
Price from 34.60 €
Table of contents


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