8X1/2 Phillips Modified Truss Self Piercing Screw Full Thread Needle Point Zinc (Pack Qty 8,000) BC-0808PPM

May be used in thin metal (less than .050 thick). Eliminates need for pre-drilled or pre-punched holes. The head design offers low clearance and an extra large bearing surface AISI 1018 - 1022 or equivalent steel Screws shall be quenched in liquid and then tempered by reheating