Simpson Deck-Drive DCU Composite Screw, #10 x 2-3/4 in., Type 316 Stainless Steel, Tan, Collated 1000-Pack is purpose-engineered for composite and PVC decking installations where a clean finish, consistent seating, and long-term corrosion resistance are non-negotiable. Designed by Simpson to eliminate the guesswork of matching fasteners to decking type, this collated screw delivers professional results across all composite decking applications - including Trex, where it carries official approval as a compatible fastener. The tan color-matched cap head blends with the deck surface for a polished, low-profile look, while the collated format pairs with the Simpson Strong-Tie Quik Drive PRO300SG2 auto-feed system for faster, more efficient installation.

Key Features

• Tri-lobe thread design - reduces damage to the composite board during driving, preserving the integrity and appearance of the decking surface
• Inverted upper threads - clear excess material as the screw seats, ensuring consistent, flush installation every time without manual cleanup
• Type-17 point - penetrates composite decking with ease for faster starts, reducing installation time and effort on every board
• Cap head design - prevents mushrooming and stops material from rising above the deck surface, resulting in a smoother, cleaner finished look
• Type 316 stainless steel construction - provides severe-level corrosion resistance, making these screws well-suited for demanding outdoor environments including coastal applications
• Tan color-matched painted head - blends with popular composite decking colors for a more concealed, finished appearance that complements the deck rather than detracting from it
• Approved fastener for Trex composite decking - gives installers and homeowners confidence that the screw meets manufacturer compatibility requirements for one of the most widely used composite decking brands
• T20 6-lobe drive with included driver bit - provides positive engagement during driving to reduce cam-out, and the included bit means you can get started right away
• Curved collation format - compatible with the Simpson Strong-Tie Quik Drive PRO300SG2 auto-feed screw driving system, speeding up large composite deck installations significantly

Why This Product

• One screw for all composite and PVC decking types - the Deck-Drive DCU is engineered to work across all composite decking applications, eliminating the need to stock or sort multiple fastener types for different decking brands or materials
• Engineered specifically for composite decking - not adapted from wood screw designs - features like the tri-lobe threads, inverted upper threads, and cap head work together to address the specific challenges of driving into composite and PVC boards, resulting in cleaner seating and less surface disruption than general-purpose screws
• Severe-level corrosion resistance built in from the material up - Type 316 stainless steel construction means these fasteners hold up in harsh outdoor conditions over the long term, protecting both the fastener and the surrounding decking from moisture-related degradation
• Compatible with auto-feed installation for high-volume projects - the curved collation format works with the Simpson Strong-Tie Quik Drive PRO300SG2 system, making this an efficient choice for contractors and builders looking to reduce installation time on larger composite deck projects

Specifications

• Model No.: DCU234S316TN
• Screw Size: #10
• Length: 2-3/4 in.
• Material: Type 316 Stainless Steel
• Finish: Type 316 Stainless Steel
• Head Type: Cap Head
• Head Diameter: 0.230 in.
• Drive Type: T20 6-Lobe
• Thread Type: Tri-Lobe Threads
• Point Type: Type-17 Point
• Collation Type: Curved
• Head Color: Tan
• Compatible Tool: Simpson Strong-Tie Quik Drive PRO300SG2 auto-feed screw driving system or attachment
• Package Quantity: 1,000

Approved Applications

• Decks - Deck Boards Composite
• Composite decking (all types)
• PVC decking
• Trex composite decking (approved fastener by Trex)

What's Included

• 1,000 collated Deck-Drive DCU Composite Screws (#10 x 2-3/4 in., Type 316 Stainless Steel, Tan)
• T20 6-lobe driver bit (replacement bit model: BITTX20-PL-RC3)

Frequently Asked Questions

What makes the Deck-Drive DCU Composite Screw different from standard deck screws?

The DCU Composite Screw is purpose-engineered for composite and PVC decking with several design-specific features: a tri-lobe thread design that reduces board damage during driving, inverted upper threads that clear excess material for consistent seating, a Type-17 point for faster starts, and a cap head that prevents mushrooming. Together, these features deliver a cleaner, more professional finish compared to standard deck screws.

Why is Type 316 stainless steel important for a deck screw?

Type 316 stainless steel provides severe-level corrosion resistance, making it suitable for demanding outdoor environments - including coastal or high-moisture areas where lesser materials can corrode, stain, or fail over time. This ensures the fasteners maintain their structural integrity and appearance throughout the life of the deck.

Is this screw approved for use with Trex composite decking?

Yes. The Deck-Drive DCU Composite Screw is an approved fastener by Trex for use with Trex composite decking products. It is also designed to work across all types of composite decking, eliminating the need to mix and match screws for different decking brands.

What tool is required to install these collated screws?

These curved-collated screws install with the Simpson Strong-Tie Quik Drive PRO300SG2 auto-feed screw driving system or attachment. A T20 6-lobe driver bit is included with the package; the replacement bit model number is BITTX20-PL-RC3.

Downloads and Resources

• Composite-Decking Color Cross-Reference chart

Related Products

• Deck-Drive Screw Plug Solution