Cross recessed countersunk flat head screws (common head style) - Product grade A - Part 2: Steel of property class 8.8; stainless steel and non-ferrous metals (ISO 7046-2:1990); German version EN ISO 7046-2:1994— 8 стр.
Steel die forgings - Tolerances on dimensions - Part 1: Drop and vertical press forgings; German version EN 10243-1:1999, Corrigenda to DIN EN 10243-1:2000-06— 2 стр.