Historical
ISO 7046-1:1994
Countersunk flat head screws (common head style) with type H or type Z cross recess - Product grade A - Part 1: Steel of property class 4.8
Specifies the characteristics of countersunk flat head screws of product grade A and property class 4.8, with threads from M1,6 to M10 inclusive and with type H or type Z cross recess. If, in special cases, specifications other than those listed here are required, they should be selected from existing International Standards, e.g. ISO 261, ISO 888, ISO 898-1 and ISO 965-2.
International Organization for Standardization [iso]