Prime Source P312S1M #9 x 3-1/2" Combination Square/Phillips Drive Primeguard Plus Coarse Thread Type 17 Auger Point Green Exterior Screws (1,000/Box)
For exterior applications, including decks, siding, gazebos, and playsets. Countersinking bugle head prevents heads from popping out, leaves smooth finish. Type 17 point reduces need to pre-drill boards. Available in combination drive or star drive.