Product Description
Simpson Deck-Drive DCU Composite Screw in #10 x 2-3/4" with a Type 305 Stainless Steel finish and Gray 01 color-matched painted head is engineered specifically for composite and PVC deck board fastening applications. Designed by Simpson, this cap-head screw delivers a clean, professional appearance by blending with popular composite decking manufacturers' color palettes, while its stainless steel construction provides dependable corrosion resistance - even in environments exposed to chlorides, moisture, and harsh outdoor conditions. Whether you are building a new deck or making repairs, this screw is purpose-built to simplify installation and produce a secure, polished result.
Key Features
- Type 305 Stainless Steel material - delivers strong corrosion resistance for outdoor decking applications, especially in environments where chloride exposure is a concern, keeping fasteners from degrading over time.
- Type-17 Point - penetrates composite and PVC decking efficiently without pre-drilling, saving installation time and reducing material damage.
- Inverted upper Tri-Lobe Threads - engineered to clear excess composite material during driving, resulting in a clean, flush installation without debris buildup around the fastener head.
- Gray 01 color-matched painted Cap Head - blends with popular composite decking colors for a more concealed, professional finish that keeps the deck surface looking uniform.
- T20 6-Lobe Drive Type - provides a secure bit engagement that reduces cam-out during driving, giving installers greater control and a cleaner countersink.
- Cap Head design with 0.230 in. head diameter - sits low and neat against the decking surface, minimizing the visual footprint of the fastener for a refined appearance.
- 2-3/4 in. length in #10 screw size - sized appropriately for composite deck board fastening, providing the penetration depth needed for a secure hold.
Why This Product
- Engineered for composite and PVC decking - the combination of the Type-17 point and inverted upper Tri-Lobe Threads means this screw is purpose-designed for these materials, rather than a general-purpose fastener adapted to the task. The result is a cleaner, more consistent installation.
- Suited for chloride-rich environments - Type 305 Stainless Steel construction makes this screw a reliable choice for coastal or high-humidity outdoor settings where standard fasteners may corrode prematurely.
- Color-matched head for a polished finish - the Gray 01 painted cap head is designed to complement popular composite decking products, reducing the visual impact of fasteners and delivering a more professional-looking deck surface.
- Eliminates the need to mix and match fasteners - as a dedicated composite deck screw from Simpson, this fastener is designed to handle all types of composite decking in a single product, streamlining the build process and reducing confusion on the job site.
Specifications
- Brand: Simpson Strong-Tie
- Screw Size: #10
- Length: 2-3/4 in.
- Material: Type 305 Stainless Steel
- Finish: Type 305 Stainless Steel
- Color: Gray 01
- Head Type: Cap Head
- Head Diameter: 0.230 in.
- Drive Type: T20 6-Lobe
- Thread Type: Tri-Lobe Threads
- Point Type: Type-17 Point
Available Pack Options
- DCU234P305GR01: 350 Pk - includes 1 driver bit included
- DCU234MB305GR01: 1750 Pk - includes 2 driver bits included
Approved Applications
- Decks - Deck Boards Composite
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 all types of composite and PVC decking. Its Type-17 point and inverted upper Tri-Lobe Threads are specifically engineered to penetrate composite materials cleanly and clear excess material during installation for a secure, flush result.
- Why is Type 305 Stainless Steel used for this screw?
- Type 305 Stainless Steel provides corrosion resistance suited to outdoor decking environments, including applications in areas with chloride exposure such as coastal or high-humidity locations. This material helps ensure the fastener maintains its integrity over time in demanding conditions.
- What drive bit is compatible with this screw?
- This screw uses a T20 6-Lobe drive. The compatible replacement driver bit is the BIT20T-2-R2, which is available separately.
- How does the Gray 01 color-matched head benefit the finished deck?
- The Gray 01 painted cap head is designed to blend with popular composite decking manufacturers' colors, resulting in a more concealed fastener appearance. This creates a cleaner, more professional-looking deck surface where the screws do not stand out visually against the decking boards.
Downloads and Resources
Related Products
- - Compatible T20 6-Lobe replacement driver bit
- Deck-Drive Screw Plug Solution - Compatible color-matching DCU Screw Plugs
Reviews
FAQs
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