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ONORM EN ISO 4017:2022
Fasteners - Hexagon head screws - Product grades A and B (ISO 4017:2022)
This document determines properties of hexagon screws with threads made of steel and non -rusting steel with metric control threads from M1.6 to M64 in product class A and product class B. If other stipulations are required in certain cases, strength classes as well as steel types of non-rusting steels from ISO 898-1 or ISO 3506-1 and measurable alternatives from ISO 888 or ISO 4753 can be removed.
Austrian Standards Institute [on]