Simpson Deck-Drive DWP Wood Screw in Type 305 Stainless Steel is a high-performance exterior fastener engineered for deck, dock, and boardwalk construction where lasting corrosion resistance is essential. Featuring a sharp-point tip and unique box-thread design, this #10 x 3" flat-head screw drives smoothly into a wide range of wood and engineered wood materials, reducing effort and extending battery life during large installations. The gray finish coordinates with many composite and pressure-treated deck surfaces, making it a practical choice for professional builders and serious DIYers tackling outdoor projects.

Key Features

• Type 305 Stainless Steel construction - delivers superior corrosion resistance in exterior, high-moisture, and deck environments, protecting both the fastener and surrounding wood from rust-related staining over time.
• Unique box-thread design with raised-ridge technology - greatly reduces driving torque so you can drive more screws on a single battery charge, increasing productivity on large deck and dock projects.
• Specially designed sharp point - penetrates hard and dense wood products with ease, eliminating the need for pre-drilling in most applications and speeding up installation.
• T25 6-lobe drive - provides a secure bit-to-fastener fit that results in smooth, cam-out-resistant driving and extended bit life across high-volume installs.
• Flat head profile (0.335 in. head diameter) - sits flush with or just below the surface of deck boards for a clean, snag-free finished appearance.
• Compatible with wood, engineered wood, and polymer materials - versatile enough to handle the full range of decking substrates in use today, from standard lumber to composite boards and fascia trim.
• Gray color finish - blends discreetly with a variety of deck board surfaces, keeping fasteners visually unobtrusive after installation.

Why This Product

• Built for demanding exterior exposure - Type 305 stainless steel resists the corrosion and oxidation common in outdoor, dock, and high-humidity environments, making this screw a reliable long-term fastening solution where standard coated screws may fail prematurely.
• Engineered to reduce installer fatigue - the reduced-torque box-thread geometry means less resistance during driving, which translates to more screws per charge and less strain during a full day of deck installation work.
• Suited for the widest range of today's deck boards - the sharp point and box threads are specifically designed for the variety of wood and engineered wood products used in modern decking, so you spend less time troubleshooting and more time fastening.
• Versatile beyond decking - the DWP screw is also sized and designed for fascia boards, millwork, and exterior trim applications, giving contractors a single reliable fastener across multiple aspects of an outdoor build.

Specifications

• Brand: Simpson Strong-Tie
• Screw Size: #10
• Length: 3 in.
• Head Type: Flat Head
• Head Diameter: 0.335 in.
• Drive Type: T25 6-Lobe
• Thread Type: Box Threads
• Point Type: Sharp Point
• Material: Type 305 Stainless Steel
• Finish: Type 305 Stainless Steel
• Color: Gray
• Approx. Count per Lb.: 68
• Country of Origin: Taiwan

Available Pack Options

• S10300WPPGR: 350 Pk - includes (1) T25 6-lobe driver bit
• S10300WPBGR: 1750 Pk - includes (2) T25 6-lobe driver bits

Approved Applications

• Deck boards and decking surfaces
• Docks and boardwalks
• General exterior construction
• Fascia boards and exterior trim
• Millwork and finishing applications
• Engineered wood and polymer deck materials

Frequently Asked Questions

What materials can the DWP Wood Screw be used with?

The Deck-Drive DWP Wood Screw is designed for use with wood, engineered wood, and polymer materials. Its sharp point and box-thread design make it well-suited for the full range of deck boards, fascia, and trim products in common use today.

What drive bit does this screw require?

This screw uses a T25 6-lobe drive. The 6-lobe design provides a secure bit fit that reduces cam-out and extends bit life, especially during high-volume decking installations.

Why does this screw have a gray finish?

The gray color is applied to help the fastener blend visually with a variety of deck board surfaces, keeping screw heads unobtrusive once installed. The underlying material is Type 305 Stainless Steel, which provides the corrosion resistance required for exterior and high-moisture applications such as decks and docks.

How does the box-thread design benefit the installer?

The unique box-thread design with raised-ridge technology is engineered to greatly reduce driving torque compared to conventional thread profiles. Lower torque means the screw drives faster and with less resistance, allowing more fasteners to be driven per battery charge - a meaningful advantage on large deck or dock projects.

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