... , Mechanical Galvanized, Black, Hot-dipped GalvanizedHead : Flat Head, Checkered Head, With or Without Counter Sunk, Large Flat Head, Brad Head, Umbrella ... Head, Tower Head, Oval Head, Cup Head, Duplex Head, Head with WasherShank:Smooth Shank, Fluted Shank, Screw Fluted, Square Shank, Square ... , Chisel Point, Screw Point, Duck Drill Point, Needle Point Galvanized Concrete Nail