SANS 1700-11-4-1996 紧固件.第11部分:十字槽头螺钉.第4节:H型或Z型十字槽半沉头螺钉(普通型).A级品
Fasteners Part 11: Cross recessed head screws Section 4: Countersunk raised head screws (common head style) with type H or type Z cross recess - Product grade A
Specifies the characteristics of countersunk raised head screws of product grade A, with threads from M1,6 to M10 inclusive and with type H or type Z cross recess.