The Simpson Deck-Drive DCU Composite Screw is engineered specifically for composite and PVC decking applications, delivering a clean, professional finish with every installation. Built around an advanced thread geometry, a color-matched Tan 03 cap head, and a Quik Guard coating that stands up to the demands of outdoor environments, this collated #10 x 2-3/4 in. screw eliminates the need to mix and match fasteners across different composite decking products - making it the dependable, all-in-one solution for composite deck builds. Curved collation and compatibility with the Simpson Strong-Tie Quik Drive PRO300SG2 auto-feed screw driving system mean faster, more consistent drives from start to finish.

Key Features

• Tri-lobe thread design - reduces damage to the composite board while driving, preserving the integrity of the decking surface and producing a cleaner result
• Inverted upper threads - clear excess material as the screw seats, ensuring a flush, consistent finish with no raised edges or surface irregularities
• Type-17 point - penetrates composite decking with ease for faster starts, reducing installation time and minimizing the effort needed per fastener
• Cap head design - prevents mushrooming and material from rising above the deck surface, giving the finished installation a smooth, professional appearance
• Quik Guard coating - suitable for use with pressure-treated lumber and provides a level of corrosion resistance equivalent to hot-dip galvanization (ASTM A153, Class D) in some exposures, helping protect fastener integrity over time
• Tan 03 color-matched painted head - blends with popular composite decking products to create a more concealed, finished look that complements the deck surface
• Trex-approved fastener - meets Trex approval requirements for use with Trex composite decking, giving installers confidence when working with one of the most widely used composite decking brands
• T20 6-lobe drive with included driver bit - provides a secure, slip-resistant drive interface that reduces cam-out and keeps installation moving efficiently; replacement bit model BITTX20-PL-RC3 available separately
• Curved collation, compatible with Quik Drive PRO300SG2 - designed for use with the Simpson Strong-Tie auto-feed screw driving system or attachment, supporting high-volume deck installation with consistent depth control

Why This Product

• One screw for all composite decking types - the Deck-Drive DCU is engineered to work across composite and PVC decking applications, removing the guesswork of pairing specific fasteners to specific materials and simplifying job-site inventory
• Surface results that look as good as the deck itself - the combination of the cap head, inverted upper threads, and Tan 03 color-matched painted head works together to produce a flush, concealed finish that enhances the overall appearance of the completed deck
• Built for corrosive outdoor environments - the Quik Guard coating delivers corrosion resistance on par with hot-dip galvanization (ASTM A153, Class D) in some exposures, making these composite deck screws a sound choice for pressure-treated framing situations where fastener longevity matters
• Designed for production-speed installation - curved collation and compatibility with the Simpson Strong-Tie Quik Drive PRO300SG2 auto-feed system let crews drive fasteners quickly and at a consistent depth, reducing fatigue and improving throughput on larger decking projects

Specifications

• MPN: DCU234STN03
• 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
• Head Color: Tan 03
• Collation Type: Curved
• Compatible Tool: Simpson Strong-Tie Quik Drive PRO300SG2 auto-feed screw driving system or attachment
• Quantity: 1,000 per package

Approved Applications

• Decks - Deck Boards Composite

What's Included

• 1,000 collated DCU234STN03 composite deck screws
• T20 6-lobe driver bit (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 or PVC decking. It is the go-to screw for all composite decking applications, eliminating the need to mix and match screws for different decking materials. It is also an approved fastener by Trex for use with Trex composite decking.

What makes the Tri-Lobe thread design beneficial for composite decking?

The tri-lobe thread design reduces damage to the composite board during driving. The inverted upper threads also clear excess material to ensure the screw is seated properly and consistently, resulting in a smooth, clean-looking installation every time.

How corrosion-resistant is the Quik Guard coating on these screws?

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

What tool is required to install these collated screws, and what drive bit do they use?

These curved-collated screws are designed to install with the Simpson Strong-Tie Quik Drive PRO300SG2 auto-feed screw driving system or attachment. They use a T20 6-lobe drive type, and a compatible driver bit is included in 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