... galvanized concrete nails 1) Diameter (mm): 1.2 - 4.5 2) Length (mm): 20 - 100 3) Shape: steel wire, flat counte ... .5 2) Length (mm): 20 - 100 3) Shape: steel wire, flat counteConcrete Steel NailsFeatures: 1) Diameter (mm): 1.2 - ... 4.52) Length (mm): 20 - 1003) Shape: steel wire, flat countersunk head, diamond or needle point, flutes or smooth ... ; as per buyer's requirement galvanized concrete nails