With a narrow countersunk head, Tongue-Tite Plus is intended to be installed at a 30-45 degree through the tongue of the board, allowing the groove to fit over the head of the screw.<br /><br />Its single course thread has been designed to eliminate the ream out of the floor boarding, giving high pull out retention. In other words - no more squeaky boards!<br />The torx recess provides greater grip and control on application whilst the narrow countersunk head gives a neat flush fix to allow the next board to sit in place.<br /><br />T10 screwdriver bit included in the box.">