Standard [CURRENT]
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This standard specifies requirements for square head bolts with collar, of product grade A with metric coarse threads from M5 to M24. This standard has been prepared by Working Committee NA 067-00-02 AA "Verbindungselemente mit metrischem Außengewinde" ("Fasteners with metric external threads") at DIN Standards Committee Fasteners (FMV).
This document replaces DIN 478:1985-02 .