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ISO/NP 7380-3 (Ed 2) Fasteners — Button head screws — Part 3: Hexalobular socket button head screws

Scope

This document specifies the properties of size M3 to size M12 button head screws with a hexalobular internal driving feature, of product grade A and with a reduced loadability.

Purpose

Hexalobular socket button head screws are currently standardized in a German standard only (DIN 34805-1) but used world wide. 

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