Countersunk flat head screws (common head style) with type H or type Z cross recess. Product grade A. Part 2. Steel screws of property class 8.8, stainless steel screws and non-ferrous metal screws
Connecting devices. Safety requirements for screw-type and screwless-type clamping units for electrical copper conductors. Part 2. Particular requirements for conductors from 35 up to 300 sq mm