1.Uses:Mainly used in concrete, cement and other construction projects 2.Material:#45 Steel/#55 Steel 3.Surface treatments:Countersunk,round head,Diamond Point, fluted 4.Surface treatment：Galvanized,Polished,Black 5.Length:1/2″-10″,BWG4-14 for all kinds of concrete nails. 6.Conventional packing: small plastic bag and small box of 1kg,2.5kg,3kg,5kg In cartonor bag of 25kgs/20kgs/50lbs 7.Loading qty 22-28tons/Shipping container Galvanized round head smooth shank concrete nails cement nails steel nails Wire clip nails 2.5x20MM are mainly for in concrete, cement and other construction projects .They have Countersunk,round head,Diamond Point, smooth shank.#45-55 steel is used as raw material. This nail is Galvanized.According to customer needs can also do polished, Phosphor black and other surface treatment.It also supports custom packaging, such as boxes, plastic bags and cartons.Please contact us if necessary.