Tite-Fix Lost-Tite screws are specially designed for quick, easy and secure fixing of tongue & groove cladding or flooring. The screws feature a reduced head, which results in a neat flush, almost hidden fixing. Lost-Tite screws have a unique, patented Tri-lock™ and TS Thread form which joins together the benefits of a single and twin thread in one screw. You will get a balanced, immediate start with a fast insertion, leaving you with a firm fix. The lower portion of the thread is coarse, for rapid insertion with a finer thread on the upper third. This upper thread ensures the board is held tight against the substrate and at the same time prevents the head ‘popping’ if the timber shrinks. The Torx (T10) head eliminates the risk of cam-out when driving *Free bit in every box*.