Designed for pocket-hole systems, Kreg pocket-hole screws increase the strength of a pocket-hole joint. Cut-thread pattern prevents splitting. Coarse thread is for any combination of softwoods, plywood, and composites, and fine is for hardwoods. Our self-tapping screws are specially designed for pocket-screw joinery. A self-tapping auger point eliminates pre-drilling and a flat head seats flush in the bottom. The square drive eliminates cam-out. Maxi-Loc is the standard screw for pocket-screw joinery in softer materials such as pine, plywood, particle board, MDF, and melamine. Larger diameter threads provide maximum holding power while the washer head seats flush in the bottom of the pocket, eliminating any chance of pull through.