The Simpson Strong-Tie Deck-Drive™ DCU Composite Screw is engineered to deliver quality fastening results in all types of composite and PVC decking. Featuring a cap head that prevents mushrooming, it leaves a smooth, clean finish while blending seamlessly with your deck surface. Available in a wide range of colors matched to leading composite decking brands, these screws eliminate the need to mix and match fasteners.

Designed for performance, the screw’s tri-lobe thread design and unique cut point penetrate composite material with ease, reducing damage and ensuring fast starts. Inverted upper threads clear away excess material for a flush fit, while Quik Guard®–coated carbon steel provides long-lasting corrosion resistance, even in high-exposure or marine environments.

Key Features

• Cap head design - prevents mushrooming for a smoother, professional-looking finish
• Tri-lobe thread design - minimizes damage to composite boards during installation
• Inverted upper threads - clear excess material for a clean, flush fit
• Unique cut point - ensures fast starts and smooth penetration in composite and PVC decking
• Color-matched options - available in finishes that blend with most major decking brands