stainless steel self drilling screw din7504 1.size:ST2.9~6.3 # ... screw / roof screw 1. Standards1. din75042. Material2. Stainless steel(SS304,SS316), carbon steel(C1022,1010,1008) copper, iron and so on.3 ... price.3.material of our hex self drilling screw:stainless steel ,carbon steel,copper and so on4.surface treatment of this hex ... Similar products‘ photos Update Date:2011-5-24 9:00:23