<br />Tongue-Tite Plus is a stainless steel screw which is suitable for internal & external use. These screws have a narrow countersunk head with TX10 drive.<br />Its' single course thread has been designed to eliminate the ream out of the timber, giving high pull out retention, which helps to prevent squeaky floor boards.<br />The torx drive provides grip and control when fitting, the narrow countersunk head gives a neat flush fix to allow the next board to sit in place.<br /><br />TX10 screwdriver bit included in the box.<br />Screw Head Diameter = 4.5mm">