Have this Deckmate #10 x 3-1/2 in. Star Drive Flat Head Tan Deck Screws delivered to your job site. Star drive head helps transfer torque and prevent cam outs. Nibs under head allow screw to countersink better for a smoother finish. Type-17 point with flute creates its own pilot hole limiting the need for pre-drilling. Includes T-25 driver bit in the box.