SIZE: 1/2"--1"(13MM-75MM) CHARACTERISTIC:IRON WIRE,LARGE FLAT HEAD,DIAMOND POINT,STRAIGHT, SMOOTH OR BARBED SHANK. AVAILABLE:BRIGHT,CC.,V.C.,E.G.,H.D.G. OR P.C.FINISH. APPLICATION:FASTENING ASPHALT FELT,WOODEN PLANK COVERED CEILINGS