Spectre advanced multi-purpose wood screws by Forgefix feature a countersunk, pozidrive compatible, recessed head for a firmer positive drive. They are fully threaded up to 50mm, with a quick-start Type 17 slash point for faster cutting. The screws have sawtooth threads to prevent splitting and reamer threads to prevent jacking. Designed for enhanced performance, they are surface-hardened and have a zinc yellow passivated finish for excellent corrosion resistance. These screws are CE approved for load-bearing timber construction. Each tub contains 600 screws and two PZ2 bits. Ideal for use with softwoods, hardwoods, chipboards, and fibreboards.