A single thread woodscrew mainly used in various types of timber and man-made boards or into masonry with the use of a plastic plug. These screws feature a double countersunk head to reduce the likelihood of head shear and assist with countersinking. The wax lubrication enhances screw insertion time, extra driving torque, and resistance to corrosion. They have a 40° deep single thread for a secure fixing with high pull-out resistance, and a 25° sharp point with a single lead for a fast start and improved thread acceptance. Sizes up to and including 75mm are fully threaded, while lengths 80mm and above have a 70mm thread length. Finish: Zinc & Yellow. Head Type: Double Countersunk. Material: Carbon Steel. Thread Coverage: Fully Threaded. Driver Bit Size: PZ2.