Product Description
Simpson Deck-Drive DCU Composite Screw in Gray 01 is a purpose-built fastener designed to deliver clean, secure, and corrosion-resistant results when installing composite or PVC deck boards. Engineered by Simpson with a Quik Guard coating for medium-level corrosion resistance, this #10 x 2-3/4" cap head screw features a Type-17 point for smooth penetration into composite decking materials, along with inverted upper threads that clear excess material as the screw drives - leaving a flush, professional finish. The color-matching painted head in Gray 01 blends seamlessly with popular composite decking brands, making it an ideal choice for installers who want concealed fastening results without sacrificing holding strength or durability.
Key Features
- Quik Guard Coating - provides medium-level corrosion resistance suited for outdoor composite deck installations where moisture exposure is a factor
- Type-17 Point - self-piercing tip penetrates composite and PVC decking cleanly, reducing the need for pre-drilling and speeding up installation
- Inverted Upper Threads (Tri-Lobe Thread design) - clear excess composite material during installation, resulting in a clean, flush surface and a secure mechanical connection
- Cap Head with 0.230" head diameter - distributes clamping force evenly across the decking surface for a stable, low-profile fastened joint
- T20 6-Lobe Drive Type - provides positive driver engagement and reduces cam-out, giving installers more control and consistency across long runs of decking
- Gray 01 color-matching painted head - blends with popular composite decking manufacturers' boards for a more concealed, professional-looking finished deck
- Carbon steel construction - delivers reliable structural integrity in composite and PVC deck board fastening applications
Why This Product
- Designed specifically for composite and PVC deck boards - the Type-17 point and Tri-Lobe thread geometry work together to prevent surface mushrooming and ensure a tight, clean seat every time, without adapting a general-purpose fastener to the job
- The Gray 01 painted cap head is engineered to match popular decking products, so the finished surface looks intentional and polished rather than exposing raw silver hardware against a colored deck field
- Quik Guard coating targets medium corrosion conditions common in outdoor deck environments, making this screw a practical choice for residential and commercial composite decking projects exposed to rain and humidity
- The T20 6-Lobe drive reduces driver slippage during installation, which means fewer stripped heads, less material damage, and faster completion across full deck installations
Specifications
- Brand: Simpson Strong-Tie
- Screw Size: #10
- Length: 2-3/4 in.
- Head Diameter: 0.230 in.
- Head Type: Cap Head
- Drive Type: T20 6-Lobe
- Thread Type: Tri-Lobe Threads
- Point Type: Type-17 Point
- Coating/Finish: Quik Guard Coating
- Color: Gray 01
Available Pack Options
- DCU234GR01R70: 70 Pk - includes 1 driver bit included
- DCU234GR01R350: 350 Pk - includes 1 driver bit included
- DCU234GR01MB: 1750 Pk - includes 2 driver bits included
Approved Applications
- Decks - Deck Boards Composite
Frequently Asked Questions
- Is this screw compatible with all types of composite and PVC decking?
- Yes. The Deck-Drive DCU Composite Screw is designed to work with all types of composite or PVC decking. The Type-17 point and Tri-Lobe thread pattern are engineered specifically for these materials to ensure a clean, secure installation without surface damage.
- What drive bit does this screw require?
- This screw uses a T20 6-Lobe drive. A compatible replacement driver bit is available - see the Related Products section below for the recommended bit option.
- What level of corrosion resistance does the Quik Guard coating provide?
- The Quik Guard coating is formulated to resist medium levels of corrosion, making it well suited for outdoor composite deck board installations where the fasteners will be exposed to moisture and general weather conditions.
- Can I use color-matching plugs to further conceal the screw heads?
- Yes. The Deck-Drive DCU screw is compatible with color-matching DCU Screw Plugs. See the Related Products section for the Deck-Drive Screw Plug Solution, which allows for an even more concealed finished appearance on composite deck surfaces.
Downloads and Resources
Related Products
- BIT20T-2-R2 - Compatible T20 6-Lobe driver bit
- Deck-Drive Screw Plug Solution - Color-matching DCU Screw Plugs for a more concealed finish
Reviews
FAQs
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