Pocket Hole Screws are specialty screws specifically designed for pocket hole wood joinery. The Cut Point decreases the chance of wood splitting while the Round Washer Head gives the screw the bearing surface needed to ensure a strong joint. Available in Coarse Thread (for softwoods and composites) and Fine Thread (for hardwoods). To ensure a quality joint and superior hold, pocket hole screws are best used in conjunction with a pocket hole drilling system or jig. Square drive. Coarse thread. Black. Size #8.