This is the detail information about galvanized common nails as follow:
1.Material:low-carbon steel Q235 Q195 Q215
2.Length:3/8"-7" Diameter:BWG4-20
3.Surface Treatment: polished, galvanized
4.Features: flat caps,round shank, diamond point, bright and smooth surface, strong rust-proof.
5.Usage: Industrial construction, foundry, furniture repair, packing boxes and so on. 
6.Package:1kg/2.5kg/5kg per box ,25/10/5box per ctn ,25kgs bulk in carton or as customers’ demand