... ,Stainless steel,Alloy steel,Copper,Aluminum are available.Carton steel is high quality iron,such as 1022, ... screw;Type "M","UNC","UNF","BSW"threads for Machine threads.Head typesHexagon head,Mushroom head,Pan head ... packed 22kg-25kg each carton;G.W. for a carton:23 kg-26kg. 3)Carton's Size :34cm*26cm ... most of places such as drywall,concrete,chipboard,machine,wood...2) Main export market:North America, ...