Simpson Deck-Drive DWP Wood Screw in #10 x 3" with Type 316 Stainless Steel finish is a high-performance fastening solution engineered for deck, dock, boardwalk, and general exterior applications where superior corrosion resistance is critical. Driven by a T25 6-lobe bit, this flat-head wood screw features a sharp point and unique box-thread design that make it exceptionally well-suited for today's deck boards - including wood, engineered wood, and polymer materials. The Type 316 stainless steel construction provides an elevated level of protection against saltwater, moisture, and harsh coastal conditions, making it a trusted choice for seaside and waterfront projects.

Key Features

• Type 316 Stainless Steel material - delivers superior corrosion resistance compared to standard stainless grades, making this screw well-suited for coastal, seaside, and wet outdoor environments where standard fasteners would degrade prematurely.
• Unique box-thread design with raised-ridge technology - greatly reduces driving torque so you can drive more screws on a single battery charge, improving productivity on large decking or dock projects.
• Specially designed sharp point - penetrates hard wood products and dense deck board materials with ease, minimizing the need for pre-drilling and speeding up installation.
• T25 6-lobe drive - provides a secure bit fit that reduces cam-out, resulting in easier driving and longer bit life across extended projects.
• Flat head design with 0.335 in. head diameter - sits flush with the surface for a clean, professional finish on decking, fascia, and trim applications.
• 3 in. length in #10 screw size - provides solid holding depth suitable for the majority of deck board thicknesses used in residential and commercial exterior construction.
• Compatible with wood, engineered wood, and polymer materials - offers versatile use across a wide range of modern decking products without the risk of material incompatibility.

Why This Product

• Built for harsh saltwater environments - Type 316 stainless steel provides a higher grade of corrosion protection than Type 304, making this screw a reliable choice for docks, piers, coastal decks, and boardwalks where salt air and moisture accelerate fastener deterioration.
• Reduces fatigue and tool wear on large jobs - the box-thread technology lowers driving resistance, meaning fewer battery changes and less strain on your drill or driver when installing hundreds of fasteners across a deck surface.
• Versatile enough for multiple exterior applications - from structural deck boards and dock framing to fascia and millwork trim, the DWP screw is designed to handle a broad range of exterior fastening needs in a single product.
• Engineered for today's deck board materials - the sharp-point tip and box-thread profile are specifically optimized for the composite, engineered wood, and polymer materials that dominate modern decking construction, reducing splitting and improving pull-through resistance.

Specifications

• Brand: Simpson Strong-Tie
• Screw Size: #10
• Length (in.): 3
• Head Type: Flat Head
• Head Diameter (in.): 0.335
• Drive Type: T25 6-Lobe
• Thread Type: Box Threads
• Point Type: Sharp Point
• Material: Type 316 Stainless Steel
• Finish: Type 316 Stainless Steel
• Approx. Count Per Lb.: 68
• Color: None
• Country of Origin: Taiwan

Available Pack Options

• T10300WP-RP8: 8 Pk
• T10300WP-RP45: 45 Pk - includes (1) T25 6-lobe bit included (BIT25T-2)
• T10300WP1: 1 Lb - includes (1) T25 6-lobe driver bit
• T10300WP-RP180: 180 Pk - includes (1) T25 6-lobe bit included (BIT25T-2)
• T10300WP5: 5 Lb - includes (1) T25 6-lobe driver bit
• T10300WPP: 350 Pk - includes (1) T25 6-lobe driver bit
• T10300WPB: 1750 Pk - includes (2) T25 6-lobe driver bits

Approved Applications

• Decking surfaces and deck boards
• Docks and boardwalks
• General exterior construction
• Fascia and trim fastening
• Finishing and millwork applications
• Engineered wood and polymer deck board materials

Frequently Asked Questions

Why is Type 316 stainless steel recommended for coastal and seaside applications?

Type 316 stainless steel contains a higher molybdenum content than Type 304, which gives it enhanced resistance to chloride corrosion - the type caused by salt air and saltwater. For docks, seaside decks, and waterfront boardwalks, this material choice helps fasteners maintain their structural integrity over time in conditions that would cause standard fasteners to corrode and fail.

What types of materials can the Deck-Drive DWP screw be used with?

The DWP is designed for use with wood, engineered wood, and polymer materials. Its sharp-point tip and box-thread profile are optimized for the range of deck board products commonly used in exterior construction today, including composite and treated lumber applications.

What drive bit do I need for the Deck-Drive DWP Wood Screw?

The DWP screw uses a T25 6-lobe drive. The 6-lobe design provides a secure, tight bit fit that minimizes cam-out during driving, extending bit life and making installation easier - especially on large-scale decking or dock projects requiring many fasteners.

Can the DWP screw be used for fascia and trim in addition to decking?

Yes. While the Deck-Drive DWP is ideally suited for the majority of wood deck boards, it is also offered in a variety of sizes to fasten fascia and trim, making it a versatile option for broader exterior finishing and millwork applications beyond decking and dock construction.

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