DIN EN ISO 7046-1:2011
H型或Z型十字槽沉頭螺釘(通用頭型).產品等級A級.第1部分:4.8類特性的鋼螺絲(ISO 7046-1-2011).德文版 EN ISO 7046-1-2011
Countersunk flat head screws (common head style) with type H or type Z cross recess - Product grade A - Part 1: Steel screws of property class 4.8 (ISO 7046-1:2011); German version EN ISO 7046-1:2011