The Simpson Deck-Drive DCU Composite Screw (Collated) - #10 x 2-3/4 in., Type 316 Stainless Steel, Red 01 is engineered specifically for composite and PVC decking applications, delivering professional fastening results with greater ease of installation and a clean, finished appearance. Designed by Simpson as the go-to screw for all composite decking applications, this collated screw eliminates the need to mix and match fasteners across different decking types - and its Red 01 color-matching painted cap head blends seamlessly with popular decking products for a more concealed, polished look.

Key Features

• Tri-lobe thread design - reduces damage to the composite board during driving, preserving the integrity and appearance of your deck surface
• Inverted upper threads - clear excess material as the screw seats, ensuring consistent, flush results every time without additional cleanup
• Type-17 point - penetrates composite decking with ease for faster starts, reducing drive time and installer fatigue across large projects
• Cap head design - prevents mushrooming and material from rising above the deck surface, resulting in a smooth, clean-looking installation
• Type 316 stainless steel construction - provides severe-level corrosion resistance, making these screws well suited for outdoor environments exposed to moisture, salt air, and harsh weather conditions
• Approved fastener for Trex composite decking - gives installers confidence that this screw meets the requirements of one of the most widely used composite decking brands
• T20 6-lobe drive type with driver bit included - provides excellent bit engagement to reduce cam-out and keep installation moving efficiently (replacement bit model BITTX20-PL-RC3)
• Curved collation format - compatible with the Simpson Strong-Tie Quik Drive PRO300SG2 auto-feed screw driving system or attachment for faster, hands-free driving on large deck installations

Why This Product

• One screw for all composite decking types - the DCU is purpose-built to handle all composite and PVC decking applications, so contractors and DIYers alike can stock a single fastener and use it across different decking brands without guesswork or substitution
• A cleaner finish through smarter engineering - the cap head and inverted upper threads work together to prevent surface mushrooming and clear displaced material, so the final deck surface looks intentional and professional rather than patched or uneven
• Severe-level corrosion protection built in - Type 316 stainless steel is the material of choice for demanding outdoor environments, meaning these fasteners are built to hold up in coastal, high-moisture, or otherwise corrosive conditions without compromising structural integrity over time
• Designed for speed on the job - the curved-collated format pairs directly with the Simpson Strong-Tie Quik Drive PRO300SG2 auto-feed system, allowing installers to drive screws rapidly without stopping to reload, making this an efficient choice for decks of any scale

Specifications

• Model No.: DCU234S316RD01
• 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: Red 01
• 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

• 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 for use with composite and PVC decking. It is the go-to screw for all composite decking applications, eliminating the need to mix and match screws to the decking they are suited for. It is also an approved fastener by Trex for use with Trex composite decking.

Why is Type 316 stainless steel used for this screw?

Type 316 stainless steel provides severe-level corrosion resistance, making it well suited for outdoor decking environments where exposure to moisture, salt air, and other harsh conditions is a concern.

What tool is recommended for installing these collated screws?

These curved-collated screws are designed to install with the Simpson Strong-Tie Quik Drive PRO300SG2 auto-feed screw driving system or attachment, which helps speed up installation while maintaining consistent seating depth.

What is the purpose of the cap head and tri-lobe thread design on the DCU screw?

The cap head prevents mushrooming and stops material from rising up above the deck surface, resulting in a smoother, clean-looking installation. The tri-lobe thread design reduces damage to the composite board during driving, while the inverted upper threads clear excess material to ensure the screw is seated properly and consistently every time.

Downloads and Resources

• Composite-Decking Color Cross-Reference chart

Related Products

• Deck-Drive Screw Plug Solution