8 x 5/8 Slotted Hex Wsher Self Piercing Screw Zinc Plated

8 x 5/8 Slotted Hex Wsher Self Piercing Screw Zinc Plated . Intercorp Strong-Pointå¨ Needle Point self piercing screws are designed to attach light gauge sheet metal to sheet metal. Meets ASTM A510 for carbon steel manufacturing. Zinc plating meets ASTM B117 for salt spray corrosion.