... requirementDiameter: 2.5mm-4.5mm Finish: Plain, zinc plated, galvanized, nickel plated. Black Standard model: DIN, GB, ISO, ... , Stainless steel, Aluminium, Brass. Coating: Plain, zinc plated, galvanized, nickel plated. Black.Packaging &DeliveringPackaging Detail: General packing: 15-25Kg ... is normally harder than a common iron nail. Galvanized concrete nails are the most common type, and are widely ...