concrete nails 1.Material: low carbon steel wire,Q195,Q235 2.Wire Dia: BWG6-18 3.Length: 12-200mm 4.Head dia: 2.5mm-6mm concrete nails1. Uses:Mainly for building construction,packing and furniture.2. MaterialQ195 or 235SpecificationsCountersunk,Checkered head,Diamond Point,Polished, galvanized.Length1/2"-10",BWG6-18 for all kinds of round Nails3.packing: A).small plastic bag and small box of 1kg, ...