Simpson Strong-Tie S10300DBB 10 x 3" Square Dr Stainless Steel Bugle Head Deck Screws, 1500 Count 1500 count Type-17 point for fast starts Coarse threads approximately 2/3 up the shank draw the decking and other material tightly to the substrate Pre-drilling recommended near board ends to prevent splitting Fasten all types of wood decking including cedar, redwood and preservative-treated woods