... ,6.8,8.8,9.8.......... ALUMINUM SLEEVE NUT,ALUMINUM WELD NUT,NUT A good non-standard ... ? MaterialsCarbon steel,Stainless steel,Alloy steel,Copper,Aluminum are available.Carton steel is high quality iron ... pure copper,such as H62,H65,H68...Aluminum is good Aluminum,R200...Meanwhile,we can use other materials ... ,Hex flange head,Round head,Ball head,Button head...Socket typesPhillip type,Pozi type,Eleven ...