T.K.Excellent #9 x 2-1/2″, This deck screw will be a good assistant in your life. The tan exterior coating is resistant to corrosion and rust through 1,000 hours of salt spray testing, so that the deck screws can maintain their service life even in bad weather. It comes with 6 contact points to prevent stripping and further tighten the screws into the wooden structure. No pre-drilling required, this deck screw is perfect for all your deck, fence and other exterior timber project needs. One box has 395 screws and two T-25 star drive drill bits. [High Quality Coating]: The surface of the deck screws is covered with three high performance coatings, which provides excellent protection against rust and decay in adverse outdoor weather. [Easy to Use]: No pre-drilling required. This decking screws with self-attack point can be used directly in engineering. Its thick thread also increases the tapping force. [Tail Cutting]: Wood screws with tail cutting design can better avoid wood cracking during construction. [Torx/Star Drive]:The star/torx drive has 6 contact points that prevent the screws from peeling and make them easier to secure into the wood. We will give you two bits, so that you can save more worry and effort during construction. [Smooth Shank]: These decking screws retain a smooth shank, which can better protect your fingers. Features: Rust Resistant Brand: T.K.Excellent Manufacturer Part Number: TQ-002 Assembled Product Weight: 5 lb Manufacturer: Zhejiang Excellent Industries Co., Ltd. Assembled Product Dimensions (L x W x H): 5.51 x 5.51 x 5.12 Inches