Zinc plated and hardened with a sharp point and wax coating for increased speed and ease of insertion. These twin thread screws offer greater holding power. The countersunk Pozidriv-compatible head features an extra-deep insert bit recess for quicker and easier insertion, and a firmer positive drive. Suitable for use with softwoods, hardwoods, chipboards, and fibreboards. Forgefix Twinthread Countersunk Pozi Screw 1 1/2" x 6 (200 Pack) in Silver.