... inside we are manufacturer good polished Common nails 1'', 2'', 3'', 4'', 5'', 6'' ,7" 1. Material: High quality low carbon steel ... Q195 , Q215 2.Finish : good polished, flat head, diamond point, ... hot-galvanized/electro-galvanized, smooth shank 3. The length: 0.5''- 6" (12.70mm ...