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
Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCB's). Part 2-1. Applicability of the general rules to RCCB's functionally independent of line voltage
