1)Product:umbrella roofing nails ,umbrella head roofing nails ,roofing nails ,roof nails ,ruffing nails ,galvanized roofing nails ,galvanized umbrella head roofing nails ,roofing nail with umbrella head ,roofing nails with umbrella

2)Length:1-3 inches

3)Shank diameter:BWG8-BWG13

4)Surface treatment: polished ,polishing,electro galvanized ,hot-dipped galvanized

5)Feature:diamond point, smooth umbrella head