Simpson Strong-Tie S09400WPB #9 x 4" T20 Torx Drive Flat Head Box Thread Sharp Point 305 Stainless Steel Screw (1,000/Box)
Build to Withstand the Elements. The Deck-DriveTM DWP Wood SS screw is a powerful fastening solution for deck, dock and general exterior applications where extra corrosion protection is needed. With its specially-designed sharp-point and unique box-threads, the DWP is ideally suited for the majority of wood used in today’s deck boards. Choose Type 316 stainless steel for seaside and coastal environments. Available in bulk for hand-drive applications, and in collated strips for use in our Quik Drive® auto-feed screw driving system. DWP screws are also offered in a variety of sizes to fasten fascia and trim.
Features
- Unique “box” thread design with raised-ridge technology greatly reduces driving torque, which allows you to drive more screws on a single battery charge 
 - Specially designed sharp point penetrates hard wood products with ease 
 - 6-lobe drive helps prevent driver-bit cam-out, resulting in easier driving and longer bit life 
 - Available in trim-head and flat-head versions. 
 - Flat-head Type 305 versions are also available with Tan 03 painted heads to match many wood deck boards. 
 - Choose Type 316 stainless steel for seaside applications
 
Specifications
- Coating Material: Type 305 Stainless Steel 
 - Size: #9 
 - Length: 4" 
 - Head Diameter: 0.250 
 - Drive Type: T-20 6-Lobe 
 - Bit Size: T20 
 - Head Type: Flat Head 
 - Thread Type: Box Threads 
 - Point Type: Sharp Point 
 - Quantity: 1,000
 
Applications
- Decking 
 - Docks and boardwalks 
 - Finishing 
 - Millwork and trim