... MaterialCarbon steel,Stainless steel,Alloy steel,Copper,Aluminum are available.Carton steel is high quality ... copper,such as H62,H65,H68...Aluminum is good Aluminum.Meanwhile,we can use other materials ... of places such as drywall,concrete,chipboard,machine,wood...2)Main export market:North America ... 15917002605 Carbon Steel Stainless Steel Aluminum Screws and Fasteners Bolts Nuts Washers Rivets Pins