The Simpson Deck-Drive DCU Composite Screw in #10 x 2-3/4" with Tan 03 finish is a purpose-built fastener designed to deliver clean, secure, and professional results when installing composite or PVC deck boards. Engineered by Simpson with a Quik Guard coating for medium-level corrosion resistance, this carbon-steel screw features a Type-17 point for smooth penetration into composite decking materials, inverted upper threads that clear excess material during installation, and a color-matched painted cap head that blends seamlessly with popular composite decking brands for a concealed, polished appearance.

Key Features

• Quik Guard Coating - provides medium-level corrosion resistance, making these screws suitable for outdoor composite and PVC deck installations exposed to moisture and weather
• Type-17 Point - self-starting tip penetrates composite decking material without pre-drilling, reducing installation time and effort
• Inverted Upper Threads (Tri-Lobe Thread Design) - clear excess composite material during driving for a clean, flush finish with no surface buildup or cracking
• Cap Head with 0.230" Head Diameter - wide seating surface secures composite boards firmly while keeping the fastener low-profile at the surface
• T20 6-Lobe Drive - provides superior bit engagement and torque transfer, reducing cam-out and driver slippage during installation
• Tan 03 Color-Matched Painted Head - blends with popular composite decking colors for a concealed, professional-grade appearance that eliminates the visual distraction of exposed fastener heads
• 2-3/4" Length - sized to provide deep, secure penetration into composite deck boards and structural framing below

Why This Product

• Designed specifically for composite and PVC decking applications, this screw eliminates the need to source different fasteners for different decking brands - one screw works across all types of composite or PVC deck boards
• The Tan 03 color-matched painted head is engineered to blend with popular manufacturers' decking finishes, giving completed decks a clean, contractor-quality look without visible fastener hardware
• The combination of a Type-17 self-starting point and inverted upper threads means faster, cleaner driving with less chance of surface damage or material cracking - important for maintaining the integrity of composite decking
• The Quik Guard coating is formulated to resist medium levels of corrosion, making this screw a reliable choice for outdoor deck construction where fasteners are regularly exposed to rain, humidity, and temperature changes

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: Quik Guard Coating
• Finish: Quik Guard Coating
• Color: Tan 03

Available Pack Options

• DCU234TN03R70: 70 Pk - includes 1 driver bit included
• DCU234TN03R350: 350 Pk - includes 1 driver bit included
• DCU234TN03MB: 1750 Pk - includes 2 driver bits included

Approved Applications

• Decks - Deck Boards Composite

Frequently Asked Questions

What type of decking material is this screw designed for?

This screw is engineered for all types of composite or PVC decking. The Type-17 point and Tri-Lobe thread design work together to drive cleanly into composite deck board material without pre-drilling, making it a versatile choice across different composite decking brands and products.

Why does the head color matter for composite deck screws?

The Tan 03 painted cap head is specifically color-matched to blend with popular composite decking manufacturers' board colors. This gives the finished deck a cleaner, more professional look by minimizing the visual contrast between the screw head and the surrounding decking surface - a common concern for homeowners and contractors alike.

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 sold separately and recommended for use with these Deck-Drive DCU composite screws.

How much corrosion resistance does the Quik Guard coating provide?

The Quik Guard coating is designed to resist medium levels of corrosion. This makes the screw appropriate for standard outdoor composite and PVC deck board installations where fasteners are exposed to moisture, rain, and typical weather conditions, but not for high-corrosion or marine environments.

Downloads and Resources

• Composite-Decking Color Cross-Reference Chart

Related Products

• - Compatible T20 6-Lobe driver bit
• Deck-Drive Screw Plug Solution - Compatible color-matching DCU screw plugs