galvanized concrete nail color:silvery,black,yellow, Packing:usually 20or25kg/carton bulking packing,or according to customer galvanized concrete nailMaterial: made of high-quality low carbon steel.Finish: electric galvanized, hot dipped galvanized,bright,flat head diamond point,smooth shankSpecifications:1/2--12,BWG4-16Package: bulk,box,bag,or according to customers requests