1.Diameter: BWG13-BWG3 2.Length: 1 3/4"-3" 3.Material: Q195 4.Shank: Smooth, Flutes 5.Finish:polish,E.G.,H.D.G. Roofing Nails With Umbrella Head Material Raw:Q195,Q235,etc.Size: Diameter(2.2-5.15mm) & Length(30-120mm) -(Choosed)Shank Types: Skew Fluted, Square, Spuare Twisted, Spiral,Smooth,Fluted,etc.-(Choosed)Surface Finishing:Bright , Electro/Hot-dip Galvanized, Colour EG, Black,etc.-(Choosed) ...