The screws are designed for a quicker and easier insertion thanks to an extra-deep insert bit recess, ensuring a firmer positive drive. A quick-start Type 17 slash point delivers faster cutting, while reamer and sawtooth threads prevent jacking and splitting. Surface-hardened and with an anti-corrosion coating too, these screws will stand the test of time – just what you need for all kinds of ironmongery, joinery, electrical and plumbing applications.