DCU234S305 Simpson Strong-Tie 2-3/4" DCU Deck-Drive Collated Composite Screw Type 305 Stainless Steel 1000-CT Carton

The Deck-Drive DCU Composite screw is engineered to provide beautiful fastening results for all types of composite decking while also offering greater ease of installation, a clean finish and superb corrosion resistance. The Deck-Drive DCU is the go-to-screw for all your composite decking applications, eliminating the need to mix and match screws to the decking.

Deck-Drive DCU Composite decking screws are available in carbon steel with our Quik Guard® coating. For superior corrosion resistance in marine or high-exposure environments, choose the appropriate stainless-steel DCU screw (Type 305 or Type 316). DCU screws provide a clean finish because of their special head design and are available in a wide range of colors, matched to blend with most major decking manufacturers.

The 2 3/4'' Deck-Drive DCU Composite screws are ideal for installing decking products to wooden roof sleeper assemblies and cladding to wood framing. The 2 3/8'' lengths are only available collated for Quik Drive® auto-feed screw driving systems.

• Available in carbon steel, as well as Type 305 and Type 316 stainless steel for high to severe levels of corrosion resistance
• Tri-lobe thread design reduces damage to the composite board while driving
• Inverted upper threads clear excess material to ensure that the screw has a clean finish
• Unique cut point penetrates composite decking with ease for fast starts
• Cap-head prevents mushrooming and material from rising up above the deck for a smoother, clean-looking installation
• Approved fastener (by Trex®) for Trex composite decking
• 6-lobe drive recess for secure driving
• When used with sleeper assemblies, the 2 3/4" DCU Composite screws should have a minimum penetration of 1" into the wooden roof deck sleeper and should not penetrate through the roof deck sleeper
• When countersinking for DCU plug solutions, use the Quik Drive® Auto-Set Driver™ Bit (model BITTX20-PL-RC3) with depth set to maximum

• Fastening composite decking boards
• Fastening roof sleeper assemblies.

Screw Color-Matching Guide

Need help finding the correct color? See the Composite-Decking Color Cross-Reference on strongtie.com to match Simpson Strong-Tie® screw colors to your decking material.