Simpson Deck-Drive DWP Wood Screw in Type 305 Stainless Steel is a high-performance fastening solution engineered for decks, docks, boardwalks, and general exterior wood applications where reliable corrosion protection is essential. The #8 x 3" trim head screw features a precisely designed sharp point and unique box-thread profile that work together to deliver smooth, low-torque driving into a wide range of wood and engineered wood materials. Whether you're fastening deck boards, fascia, or exterior trim, this stainless steel wood screw is built to handle demanding outdoor environments with a secure, clean finish.

Key Features

• Type 305 Stainless Steel material - delivers strong corrosion resistance for exterior, deck, and dock applications where moisture exposure is a constant concern, extending fastener lifespan in tough outdoor conditions.
• Unique box-thread design with raised-ridge technology - greatly reduces driving torque so you can drive more screws per battery charge, increasing efficiency and reducing fatigue during large decking projects.
• Specially designed sharp point - penetrates hardwood and dense wood products with ease, eliminating the need for pre-drilling in most applications and speeding up installation.
• T20 6-lobe drive - provides a secure, positive bit fit that reduces cam-out, resulting in easier driving and significantly longer bit life on the job.
• Trim head profile with 0.250 in. head diameter - sits low and discreet on the surface of deck boards and trim pieces, producing a clean, finished appearance without bulky screw heads.
• Compatible with wood, engineered wood, and polymer materials - gives contractors and DIYers versatility across a broad range of today's deck board and exterior trim materials without switching fasteners.
• 3-inch length - provides solid bite and holding power through deck boards and into the framing below, ensuring a secure and stable connection over time.

Why This Product

• Purpose-built for exterior and deck environments - the combination of Type 305 Stainless Steel and a sharp-point box-thread design means this screw is specifically engineered for the moisture, wood movement, and repeated loading that deck, dock, and boardwalk installations demand.
• Reduces installation time and battery drain - the raised-ridge box-thread technology lowers driving torque, which directly translates to faster installation and more screws driven per battery charge - a practical advantage on large-scale decking projects.
• Delivers a professional, low-profile finish - the trim head style keeps the screw face small and unobtrusive, making it the right choice for visible fascia, millwork, and trim work where aesthetics matter as much as holding power.
• Versatile fastening across deck board types - with compatibility across wood, engineered wood, and polymer decking materials, this screw adapts to the variety of products used in modern deck construction without requiring multiple fastener types on the same job.

Specifications

• Brand: Simpson Strong-Tie
• Screw Size: #8
• Length: 3 in.
• Head Type: Trim Head
• Head Diameter: 0.250 in.
• Drive Type: T20 6-Lobe
• Thread Type: Box Threads
• Point Type: Sharp Point
• Material: Type 305 Stainless Steel
• Finish: Type 305 Stainless Steel
• Approx. Count Per Lb.: 91
• Country of Origin: Taiwan

Available Pack Options

• S08300WPP: 350 Pk - includes (1) T20 6-lobe driver bit
• S08300WPB: 1750 Pk - includes (2) T20 6-lobe driver bits

Approved Applications

• Deck boards and decking surfaces
• Docks and boardwalks
• Exterior fascia and finishing
• Millwork and exterior trim
• General exterior wood and engineered wood applications requiring corrosion protection

Frequently Asked Questions

What type of drive bit does this screw require?

This screw uses a T20 6-lobe drive. The 6-lobe interface provides a secure bit engagement that minimizes cam-out and extends bit life, making it well suited for high-volume deck and trim installation work.

Is this screw suitable for use near salt water or coastal environments?

This screw is made from Type 305 Stainless Steel, which offers strong corrosion resistance for most exterior, deck, and dock applications. For seaside and coastal environments with direct saltwater exposure, a Type 316 stainless steel option should be considered for enhanced protection.

Can this screw be used with engineered wood and composite deck boards?

Yes. The Deck-Drive DWP Wood Screw is compatible with wood, engineered wood, and polymer materials, making it suitable for the wide variety of deck board products used in modern construction and renovation projects.

Does the trim head style affect holding strength compared to a standard head?

The trim head profile features a 0.250 in. head diameter designed to sit low and flush against deck boards and trim surfaces. It is optimized for exterior decking, fascia, and millwork applications where a clean, low-profile appearance is desired alongside reliable fastening performance.

Note: Product dimensions and/or thread length may differ from picture.