... /2"-7" surface deal: polished or galvanized ISO 9001:2000 Common Nails1. Material: High quality low carbon steel Q195 , Q215 ,Q235 ... /2''- 7" , 12.70mm—177.8mm4. Diameter: BWG19- BWG45. Type: common nails, concrete nails, roofing nails, lose head nail, double head ...