Simpson Deck-Drive DCU Composite Screw in Red 01 is a purpose-built fastener from Simpson designed for secure, attractive installation of composite and PVC deck boards. Featuring a Quik Guard coating for medium-corrosion resistance, a Type-17 point for clean penetration through composite materials, and a color-matched painted cap head in Red 01, this #10 x 2-3/4" screw delivers a concealed, professional finish that blends with popular composite decking brands. Whether you're building a new deck or replacing boards, this composite decking screw is engineered to drive cleanly, hold securely, and look great doing it.

Key Features

• Quik Guard Coating - provides medium-level corrosion resistance, making this screw suitable for outdoor composite deck installations exposed to moisture and weather.
• Type-17 Point - self-piercing tip penetrates composite and PVC decking without pre-drilling, speeding up installation and reducing prep work.
• Inverted Upper Threads (Tri-Lobe Thread Design) - clears excess material from the installation zone as the screw drives in, ensuring a flush, clean seat and a secure hold in composite deck boards.
• T20 6-Lobe Drive - reduces cam-out during driving for better bit engagement, more consistent torque transfer, and a cleaner finish at the screw head.
• Cap Head with 0.230" Diameter - low-profile head sits flush or just below the deck surface, minimizing snag points and contributing to a tidy, professional deck surface.
• Red 01 Color-Matching Painted Head - blends with composite decking from popular manufacturers, creating a more concealed fastening result compared to standard silver or gray screws.
• 2-3/4" Length / #10 Screw Size - sized to achieve proper embedment depth in composite deck boards while engaging the substructure beneath for a firm, long-lasting connection.

Why This Product

• Composite decking requires a fastener engineered specifically for the material - the Type-17 point and Tri-Lobe threads work together to drive cleanly into composite and PVC boards without mushrooming the surface or leaving raised edges around the head.
• The Red 01 color-matched painted cap head blends with the deck surface instead of standing out, giving finished decks a more polished, contractor-quality appearance that homeowners notice.
• Quik Guard coating is designed to resist medium levels of corrosion, making these screws a reliable choice for outdoor decking environments where moisture and UV exposure are ongoing concerns.
• The T20 6-Lobe drive system reduces cam-out and stripped heads compared to standard Phillips drives, keeping installation moving efficiently and reducing wasted fasteners on the job.

Specifications

• Brand: Simpson Strong-Tie
• 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
• Coating/Finish: Quik Guard Coating
• Color: Red 01

Available Pack Options

• DCU234RD01R70: 70 Pk - includes 1 driver bit included
• DCU234RD01R350: 350 Pk - includes 1 driver bit included
• DCU234RD01MB: 1750 Pk - includes 2 driver bits included

Approved Applications

• Decks - Deck Boards Composite

Frequently Asked Questions

What types of decking material is the Deck-Drive DCU Composite Screw compatible with?

This screw is designed for use with all types of composite or PVC decking. The Type-17 self-piercing point and Tri-Lobe thread design are specifically engineered to penetrate and fasten composite deck boards cleanly without requiring pre-drilling in most applications.

Why does the Deck-Drive DCU have inverted upper threads?

The inverted upper threads are engineered to clear excess composite material that is displaced as the screw drives in. This clearing action ensures the screw seats flush and cleanly, preventing raised edges or puckering around the fastener head - resulting in a smoother, more professional deck surface.

What bit do I need to drive the Deck-Drive DCU Composite Screw?

The Deck-Drive DCU Composite Screw uses a T20 6-Lobe drive. A compatible replacement driver bit is available - see the Related Products section below for the recommended bit. Using the correct bit reduces cam-out and extends bit life during high-volume deck installations.

Can the Red 01 color be matched with composite decking plug covers?

Yes. Color-matching DCU Screw Plugs are available to complement the Red 01 painted heads, allowing for an even more concealed installation appearance. See the Related Products and Downloads sections below for the Deck-Drive Screw Plug Solution and the Composite-Decking Color Cross-Reference chart to confirm color compatibility with your specific decking product.

Downloads and Resources

• Composite-Decking Color Cross-Reference Chart

Related Products

• BIT20T-2-R2 - compatible T20 6-Lobe driver bit for the Deck-Drive DCU Composite Screw
• Deck-Drive Screw Plug Solution - color-matching screw plugs compatible with the DCU Composite Screw