Triple Coated Deck screws are for use with all treated lumber. Counter sunk flat head design allows the head to countersink into the wood more easily with minimal tearing of wood fiber. Neutral tone blends well with wood. Install screws no closer than 3/4" from edge of a board. When fastening within 1 1/2" from the end of the board, follow the standard building practice of predrilling a 3/16" diameter pilot hole. This will prevent the board from splitting. DO NOT OVERDRIVE THE SCREW.