Material Steel Length 2-1/4''~4-1/4'' Head Diameter As your requests Shank Diameter 6GA~11.5GA best quality good Detailed Product DescriptionDuplex Nails material: high-quality low carbon steel, length:2-1/4''~4-1/4'' diameter:6GA~11.5GA model:2D,8D,10D,12D,16D,30D 2D-30D Duplex Nails SizeFinishPacking2D,3D4D,5D,6D,7D,8D,9D,10D,12D,16D,20D,30DBright,E.G.1kg/box,5kgs/box,25kgs/carton,8lbs/plastic ...