Diameter: #10 Diameter 2: 13/32 Length: 3 Material: Stainless Steel Head Style: 6 Nibs Bugle (T-25 Star Bit) Point Type: Type 17 Thread Type: Double CSK Thread Length: Partial Hardness: 316 Style: Serrated Type: Deck Screw The Ultimate Construction Screw - Fully specced for structural applications. Star and Hex Drive reduces Cam-out and for easy slip-free driving. Unique serrated thread for secure fastening. Most of our line offers a Type 17-point which eliminates the need for pre-drilling and reduces wood splitting. (Timber Screws Hex Head Construction & Ledger Screws are not equipped with Type 17-point). Exterior screws are encased with our premium XL 1500 coating to resist the environment wood acids & treatment. Top quality alloy steel and are case hardened. Engineered to make them the best choice for professional and home use.