The Simpson Deck-Drive DCU Composite Screw (#10 x 2-3/4 in., Brown 05, Collated) is a purpose-engineered fastener from Simpson built for composite and PVC decking installations where clean results, reliable seating, and long-term durability all matter. Designed as a true universal composite decking screw, it eliminates the need to mix and match fasteners across different decking products, delivering a color-matched, concealed finish alongside exceptional corrosion resistance on every drive. Curved collation makes it fully compatible with the Simpson Strong-Tie Quik Drive PRO300SG2 auto-feed screw driving system, enabling faster, more consistent production on the deck.

Key Features

• Tri-Lobe Thread Design - reduces lateral stress and damage to composite board material during installation, protecting the deck surface for a cleaner finished look
• Inverted Upper Threads - clear excess material away as the screw seats, ensuring consistent, flush fastening across every board without manual adjustment
• Type-17 Point - penetrates composite decking quickly for faster starts and reduced installation time, especially across large deck projects
• Cap Head Profile - prevents mushrooming and keeps decking material from rising above the surface, producing a smooth, professional appearance without additional finishing work
• Quik Guard Coating - rated for use with pressure-treated lumber and delivers corrosion resistance equivalent to hot-dip galvanization (ASTM A153, Class D) in some exposures, supporting long-term performance in outdoor environments
• Brown 05 Color-Matched Head - blends with popular composite decking products to provide a more concealed, finished look that complements the deck surface
• Trex-Approved Fastener - verified and approved by Trex for use with Trex composite decking products, giving installers confidence in compliance and compatibility
• T20 6-Lobe Drive with Included Bit - the T20 6-lobe driver bit is included in the package, so installers can get to work immediately without sourcing additional accessories
• Curved Collation - designed for use with the Simpson Strong-Tie Quik Drive PRO300SG2 auto-feed system or attachment, enabling high-volume installation with fewer interruptions

Why This Product

• One screw for all composite decking types - the Deck-Drive DCU is engineered as a universal composite decking fastener, eliminating the need to stock or sort multiple screw types for different decking brands or materials, which simplifies purchasing and saves time on the job
• Engineering that protects the deck surface - the combination of tri-lobe threads, inverted upper threads, and a cap head work together to minimize board damage, clear debris at the seating point, and prevent surface mushrooming, resulting in a cleaner install with less remediation
• Corrosion resistance built for outdoor exposure - the Quik Guard coating provides corrosion resistance equivalent to hot-dip galvanization (ASTM A153, Class D) in some exposures and is rated for use with pressure-treated lumber, making it a reliable choice for deck framing environments where moisture and chemical exposure are ongoing concerns
• Auto-feed system compatibility speeds up production - curved collation and compatibility with the Simpson Strong-Tie Quik Drive PRO300SG2 auto-feed screw driving system mean large decking projects can be driven faster and more consistently than with standard single-screw installation methods

Specifications

• MPN: DCU234SBR05
• Screw Size: #10
• Length: 2-3/4 in.
• 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
• Coating/Finish: Quik Guard Coating
• Head Color: Brown 05
• Compatible Tool: Simpson Strong-Tie Quik Drive PRO300SG2 auto-feed screw driving system or attachment
• Packaging Quantity: 1,000 per package

Approved Applications

• Decks - Deck Boards Composite

What's Included

• 1,000 Deck-Drive DCU Composite Screws (#10 x 2-3/4 in., Brown 05)
• T20 6-lobe driver bit included (replacement bit model BITTX20-PL-RC3)

Frequently Asked Questions

What type of decking is the Deck-Drive DCU Composite Screw designed for?

The Deck-Drive DCU Composite Screw is engineered specifically for composite and PVC decking applications. It is a universal solution that eliminates the need to mix and match screws for different decking products, making it suitable for all types of composite decking.

Is this screw approved for use with Trex decking?

Yes. The Deck-Drive DCU Composite Screw is an approved fastener by Trex for use with Trex composite decking products.

What corrosion resistance does the Quik Guard coating provide?

The Quik Guard coating is suitable for use in pressure-treated lumber and provides a level of corrosion resistance equivalent to hot-dip galvanization (ASTM A153, Class D) in some exposures.

What tool is compatible with these collated screws, and what drive bit do they require?

These curved-collated screws are designed to install with the Simpson Strong-Tie Quik Drive PRO300SG2 auto-feed screw driving system or attachment. They require a T20 6-lobe driver bit, which is included in the package. The replacement bit model is BITTX20-PL-RC3.

Downloads and Resources

• Composite-Decking Color Cross-Reference chart

Related Products

• Deck-Drive Screw Plug Solution