The Simpson Deck-Drive DCU Composite Screw, #10 x 2-3/4 in., Type 316 Stainless Steel, Tan 03, Collated 1000-Pack is engineered by Simpson specifically for composite and PVC decking applications, delivering clean, professional fastening results with greater ease of installation and severe-level corrosion resistance. Designed as a universal composite deck screw, it eliminates the need to mix and match fasteners across different decking products, and its color-matching painted head in Tan 03 blends seamlessly with popular decking manufacturers for a more concealed, finished appearance. The curved collation format is compatible with the Simpson Strong-Tie Quik Drive PRO300SG2 auto-feed screw driving system, making high-volume deck installations faster and more consistent.

Key Features

• Tri-lobe thread design - reduces damage to the composite board while driving, preserving the integrity and appearance of your decking surface
• Inverted upper threads - clear excess material as the screw seats, ensuring a consistent, flush installation every time without surface buildup
• Type-17 point - penetrates composite decking with ease for faster starts, reducing the effort and time needed per fastener
• Cap head design - prevents mushrooming and material from rising above the deck surface, resulting in a smooth, clean-looking finished deck
• Type 316 stainless steel construction - provides severe-level corrosion resistance, making these screws well-suited for demanding outdoor and coastal environments
• T20 6-lobe drive - delivers reliable bit engagement and reduced cam-out, with a driver bit included so you can get started right away
• Tan 03 painted head - color-matched to blend with popular composite decking products, keeping fasteners as inconspicuous as possible
• Approved fastener for Trex composite decking - gives installers and homeowners confidence that the screw meets Trex requirements for use with their products
• Curved collation format - compatible with the Simpson Strong-Tie Quik Drive PRO300SG2 auto-feed driving system, enabling faster, more ergonomic installation on large decking projects

Why This Product

• One screw for all composite and PVC decking - the Deck-Drive DCU is engineered as a go-to fastener for composite deck boards across brands, so contractors and DIYers can stock a single screw rather than sourcing multiple fasteners for different decking products
• Built for coastal and high-exposure outdoor conditions - Type 316 stainless steel delivers severe-level corrosion resistance, making this composite decking screw a reliable long-term choice in harsh or moisture-heavy environments where standard fasteners would degrade
• Engineered for a cleaner finished appearance - the combination of a cap head, inverted upper threads, and a Tan 03 color-matched painted head works together to minimize surface disruption and keep fasteners visually concealed in the finished deck
• Designed for efficient, high-volume installation - curved collation and compatibility with the Simpson Strong-Tie Quik Drive PRO300SG2 auto-feed system means faster driving, less fatigue, and more consistent results across an entire decking project

Specifications

• Model No.: DCU234S316TN03
• Material: Type 316 Stainless Steel
• Finish: Type 316 Stainless Steel
• 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
• Head Color: Tan 03
• Compatible Tools: Installs with the Simpson Strong-Tie Quik Drive PRO300SG2 auto-feed screw driving system or attachment
• Package Quantity: 1,000

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 material is the Deck-Drive DCU Composite Screw designed for?

The Deck-Drive DCU Composite Screw is designed for composite or 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 is used to provide severe-level corrosion resistance, making this screw well-suited for demanding outdoor decking environments where long-term durability against corrosion is critical.

How does the tri-lobe thread design benefit composite decking installation?

The tri-lobe thread design reduces damage to the composite board while driving. Combined with inverted upper threads that clear excess material, the screw is seated properly and consistently every time, resulting in a cleaner, more professional finish.

What tool is recommended for installing these collated screws?

These 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 also included with the package, with replacement bit model BITTX20-PL-RC3 available separately.

Downloads and Resources

• Composite-Decking Color Cross-Reference chart

Related Products

• Deck-Drive Screw Plug Solution