Product Description
The Simpson Deck-Drive DCU Composite Screw in Brown 05 is a purpose-built fastener engineered for all types of composite and PVC decking installations. Featuring a Quik Guard coating for medium-level corrosion resistance, this carbon-steel screw delivers a clean, professional finish thanks to its color-matching painted cap head that blends with popular composite decking brands. Whether you are fastening composite deck boards on a residential project or a commercial outdoor structure, this screw is designed to drive smoothly, hold securely, and look great doing it.
Key Features
- Quik Guard Coating - provides medium-level corrosion resistance, making this screw well-suited for outdoor composite decking environments exposed to moisture and weather
- Type-17 Point - self-drilling tip penetrates composite and PVC decking without pre-drilling, saving installation time and effort
- Inverted Upper Threads (Tri-Lobe Thread Design) - engineered to clear excess composite material as the screw drives, resulting in a clean, flush seating without material buildup or surface damage
- Cap Head with 0.230 in. Diameter - low-profile head style sits flush against the decking surface for a smooth, finished appearance
- T20 6-Lobe Drive - high-torque drive recess reduces cam-out and allows for more controlled, efficient driving during installation
- Brown 05 Color-Matching Painted Head - blends with popular composite decking manufacturers' board colors for a more concealed, professional-looking result
- #10 x 2-3/4 in. Size - sized appropriately for standard composite deck board thickness, ensuring reliable pull-through resistance and holding strength
Why This Product
- Designed specifically for composite and PVC decking - this is not a general-purpose screw adapted for composite use, but a fastener engineered from the ground up for composite deck board applications, eliminating the need to mix and match fasteners across different decking products
- The inverted upper thread design actively clears composite material as the screw seats, preventing the surface mushrooming or raised lips that commonly occur when standard screws are used in composite decking
- Color-matched Brown 05 painted heads integrate visually with popular deck board brands, delivering a finished appearance that generic stainless or silver-head screws cannot achieve in composite applications
- The Quik Guard coating provides a corrosion-resistant barrier suited to medium-exposure outdoor environments, giving composite deck installations lasting protection against everyday moisture and weather
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: Brown 05
Available Pack Options
- DCU234BR05R70: 70 Pk - includes 1 driver bit included
- DCU234BR05R350: 350 Pk - includes 1 driver bit included
- DCU234BR05MB: 1750 Pk - includes 2 driver bits included
Approved Applications
- Decks - Deck Boards Composite
Frequently Asked Questions
- What type of decking material is this screw compatible with?
- This screw is designed for all types of composite and PVC decking. The Type-17 point and Tri-Lobe thread design work together to penetrate composite materials cleanly and seat flush without damaging the decking surface.
- Why do the upper threads have an inverted design?
- The inverted upper threads are engineered specifically for composite decking materials. As the screw drives into the composite board, these threads clear excess material away from the fastener head, preventing surface buildup and ensuring a clean, flush installation with no raised edges or mushrooming around the screw head.
- What drive bit does this screw require?
- This screw uses a T20 6-Lobe drive. A compatible replacement driver bit is the BIT20T-2-R2, which is listed in the Related Products section below.
- Does the Brown 05 color match specific composite decking brands?
- Yes - the Brown 05 painted cap head is formulated to blend with popular composite decking manufacturers' board colors. For a detailed cross-reference of which decking colors and brands this shade matches, refer to the Composite-Decking Color Cross-Reference chart available in the Downloads and Resources section below. Color-matching screw plugs are also available for an even more concealed finish.
Downloads and Resources
Related Products
Reviews
FAQs
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