roof nail Size:BWG8 to 13 Length:1.5"to 6" Surface treatment: elec. galvanzied Material:Q195 roof nail 1) Specification: BWG8~BWG13 2) Length: 25 mm~ 100mm (1"~4") 3) Raw Material:Q195 Q2154) Description: Umbrella head, smooth or plain shank, twist shank 5) Surface treatment: Electric galvanized or hot dipped galvanized 6) Packing: different types as your request (box packing, carton packing ,bag ...