... ’s the specification of our Products ? MaterialCarbon steel,Stainless steel,Alloy steel,Copper,Aluminum are available.Carton steel is high quality iron,such as 1022 ... ","UNF","BSW"thread are available.Head typeHexagon head,Mushroom head,Pan head,Countersunk head,Bugle head,Oval head,Hex flange head,Round head,Ball head,Button head...Socket typePhillip type,Pozi ...