... ,8.8... screws and fasteners , fasteners bolts nuts screws , stainless steel fastener1.What’s the specification of our Products ? MaterialCarbon steel,Stainless steel,Alloy steel,Copper,Aluminum are ... head,Hex flange head,Round head,Ball head,Button head...Socket typePhillip type,Pozi type,Eleven type,hexagonal type,Torx type ...