Simpson Deck-Drive DWP Wood Screw in Type 316 Stainless Steel is a professional-grade fastener engineered for deck, dock, and exterior wood applications where long-term corrosion resistance is critical. The #8 x 3" flat head screw features a T20 6-lobe drive and a specially designed sharp point paired with unique box threads, delivering reliable performance in treated lumber, engineered wood, and polymer decking materials. Type 316 stainless steel construction makes this screw an ideal choice for coastal, seaside, and high-moisture environments where standard fasteners would fail prematurely.

Key Features

• Type 316 Stainless Steel material - provides superior corrosion resistance compared to standard stainless grades, making it well-suited for saltwater exposure, seaside installations, and chemically treated lumber in harsh outdoor environments.
• Unique box thread design with raised-ridge technology - greatly reduces driving torque so you can drive more screws per battery charge, increasing efficiency on large deck and dock projects.
• Specially designed sharp point - penetrates hard wood and dense engineered wood products with ease, reducing the need for pre-drilling and speeding up installation.
• T20 6-lobe drive - provides a secure bit fit that reduces cam-out, resulting in an easier drive and extended bit life across high-volume fastening applications.
• Flat head profile with 0.335 in. head diameter - sits flush with the decking surface for a clean, professional finish on exposed deck boards, fascia, and trim.
• 3 in. length at #8 screw size - suitable for securing standard-thickness deck boards and fascia applications where a deep, secure bite into the framing member is needed.
• Compatible with wood, engineered wood, and polymer materials - offers broad versatility across the range of decking products commonly used in today's residential and commercial outdoor builds.

Why This Product

• Built for coastal and waterfront environments - Type 316 stainless steel offers elevated resistance to saltwater, moisture, and corrosive elements, making this screw the right choice for docks, boardwalks, and seaside decks where inferior fasteners corrode quickly and compromise structural integrity.
• Reduces installer fatigue and tool wear - the box thread design with raised-ridge technology lowers driving torque, which directly translates to more screws driven per battery charge and less strain during extended installs on large decking projects.
• Versatile enough for most exterior wood applications - compatible with deck boards, fascia, trim, millwork, and engineered wood products, this screw eliminates the need to stock multiple fastener types for different phases of an exterior build.
• Flush flat head for clean surface results - the flat head design seats flush at the surface, delivering a professional finish on visible deck boards and trim without raised hardware that could catch feet or equipment.

Specifications

• Brand: Simpson Strong-Tie
• Screw Size: #8
• Length: 3 in.
• Head Type: Flat Head
• Head Diameter: 0.335 in.
• Drive Type: T20 6-Lobe
• Thread Type: Box Threads
• Point Type: Sharp Point
• Material: Type 316 Stainless Steel
• Finish: Type 316 Stainless Steel
• Approx. Count Per Lb.: 82
• Color: None
• Country of Origin: Taiwan

Available Pack Options

• T08300WPF1: 1 Lb - includes (1) T20 6-lobe driver bit
• T08300WPF5: 5 Lb - includes (1) T20 6-lobe driver bit
• T08300WPFB: 1750 Pk - includes (2) T20 6-lobe driver bits

Approved Applications

• Decking - securing deck boards to framing in residential and commercial outdoor builds
• Docks and boardwalks - high-moisture and waterfront installations requiring superior corrosion protection
• Fascia and trim - fastening exterior finishing and millwork where a flush head profile is needed
• General exterior applications - wood, engineered wood, and polymer materials in outdoor environments

Frequently Asked Questions

Why should I choose Type 316 stainless steel for my deck or dock project?

Type 316 stainless steel provides a higher level of corrosion resistance than standard stainless grades, making it particularly well-suited for seaside and coastal environments where exposure to saltwater and moisture is ongoing. It is the recommended material choice when extra corrosion protection is needed for exterior wood applications like decks, docks, and boardwalks.

What types of wood and decking materials are these screws compatible with?

The Deck-Drive DWP Wood Screw is designed for use with wood, engineered wood, and polymer decking materials. The sharp point and box thread design make it ideally suited for the majority of deck board products used in today's residential and commercial exterior applications, including fascia and trim boards.

What is the benefit of the box thread design on the DWP screw?

The unique box thread design with raised-ridge technology greatly reduces driving torque during installation. This means less resistance when driving each screw, which allows installers to drive more screws on a single battery charge - a significant advantage on large decking projects where hundreds or thousands of fasteners are needed.

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

The Deck-Drive DWP Wood Screw uses a T20 6-lobe drive. The 6-lobe interface provides a secure bit engagement that reduces cam-out and extends bit life, so a standard T20 driver bit is the correct tool for installation.

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