Simpson Deck-Drive DWP Wood Screw in Type 316 Stainless Steel is a high-performance fastening solution engineered for decking, dock construction, and general exterior woodworking where superior corrosion resistance is essential. Featuring a trim head profile, T15 6-lobe drive, and sharp point designed to penetrate hardwoods without pre-drilling, this #7 x 1-5/8" screw delivers reliable holding power in demanding outdoor environments - including seaside and coastal installations where saltwater exposure would degrade lesser fasteners. The unique box-thread design reduces driving torque, helping extend battery life on cordless tools while maintaining a clean, flush finish in deck boards, fascia, and trim applications.

Key Features

• Type 316 Stainless Steel material - provides enhanced corrosion resistance compared to standard stainless, making it the right choice for coastal, seaside, and high-humidity outdoor environments where salt air and moisture are constant factors.
• 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 hardwood deck boards and other dense wood products with ease, reducing the need for pre-drilling and speeding up installation.
• T15 6-lobe drive - delivers a secure, wobble-free bit fit that results in easy, consistent driving and extended bit life, reducing bit replacements on the job.
• Trim head profile with 0.230" head diameter - sits low and discreet at the surface, making it well-suited for fascia boards, millwork, and finish trim where a clean appearance matters.
• Compatible with wood, engineered wood, and polymer materials - offers versatility across the full range of deck boards and exterior building products used in modern construction.
• Sharp point geometry - allows direct penetration into wood and engineered decking without splitting or pre-boring, saving time on every course of boards.

Why This Product

• Built for harsh coastal and exterior conditions - Type 316 stainless steel is specifically suited for seaside applications where standard fasteners corrode quickly, keeping your deck or dock structurally sound and visually clean over the long term.
• Reduces installer fatigue and battery downtime - the box-thread design's reduced driving torque means fewer battery swaps during large-scale decking and dock projects, directly improving efficiency on the job site.
• Trim head design blends into finished surfaces - the low-profile 0.230" head sits flush without standing out, making these screws a practical choice for fascia, trim, and finish millwork where aesthetics matter alongside performance.
• Versatile across today's decking materials - engineered to work with wood, engineered wood, and polymer deck boards, this screw adapts to a wide range of exterior material types without requiring multiple fastener SKUs on site.

Specifications

• Brand: Simpson Strong-Tie
• Screw Size: #7
• Length: 1-5/8"
• Material: Type 316 Stainless Steel
• Finish: Type 316 Stainless Steel
• Head Type: Trim Head
• Head Diameter: 0.230 in.
• Drive Type: T15 6-Lobe
• Thread Type: Box Threads
• Point Type: Sharp Point
• Approx. Count Per Lb.: 195
• Color: None
• Country of Origin: Taiwan

Available Pack Options

• T07162WP-RP20: 20 Pk
• T07162FWP: 100 Pk - includes (1) T15 6-lobe driver bit
• T07162WP1: 1 lb - includes (1) T15 6-lobe driver bit
• T07162WP-RP400: 400 Pk - includes (1) T15 6-lobe bit included
• T07162WPP: 350 Pk - includes (1) T15 6-lobe driver bit
• T07162WP5: 5 lb - includes (1) T15 6-lobe driver bit
• T07162WPB: 4000 Pk - includes (2) T15 6-lobe driver bits

Approved Applications

• Deck boards and decking surfaces
• Docks and boardwalks
• Fascia boards and finishing trim
• Millwork and exterior finish carpentry
• General exterior wood and engineered wood applications requiring extra corrosion protection
• Polymer deck board installation

Frequently Asked Questions

Why should I use Type 316 stainless steel screws instead of standard stainless for my deck project?

Type 316 stainless steel offers enhanced resistance to corrosion compared to standard stainless grades, making it especially well-suited for seaside, coastal, and other environments where salt air, moisture, and chemical exposure are ongoing concerns. For deck, dock, and exterior trim applications in these conditions, 316 SS screws help maintain holding strength and appearance over time.

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

The Deck-Drive DWP Wood SS screw is designed to work with wood, engineered wood, and polymer materials - covering the majority of deck board types used in today's construction. The sharp point and box-thread design allow it to penetrate hard wood products without pre-drilling in most applications.

What is the benefit of the box-thread design on these screws?

The unique box threads, combined with raised-ridge technology, greatly reduce driving torque during installation. This means your cordless drill or driver expends less energy per screw, allowing you to drive more fasteners on a single battery charge - a meaningful advantage on larger decking and dock projects.

What drive bit do I need to install these screws?

These screws use a T15 6-lobe drive. The 6-lobe design provides a secure, centered bit fit that reduces cam-out and extends the working life of the bit, helping maintain consistent driving performance throughout the installation.

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