... .8,10.9.... Stainless Steel Insert Nut ,Stainless Steel Barrel Nut ,Stainless Steel Blind Nut. 1.What’s the specification of our Products ? MaterialCarbon steel,Stainless steel,Alloy steel,Copper,Aluminum are available ... ,Mushroom head,Pan head,Countersunk head,Bugle head,Oval head,Hex flange head,Round head,Ball head,Button head...Socket typePhillip ...