Zinc plated and hardened with a twin thread and sharp point, these screws are ideal for a wide range of fixing applications. The twin thread provides greater holding power and works with a special wax coating to increase speed and ease of insertion. The countersunk Pozidriv-compatible head features an extra-deep insert bit recess for quicker and easier insertion, and a firmer positive drive. Suitable for softwoods, hardwoods, chipboards, and fibreboards.