Simpson Strong Deck-Drive™ DCU COMPOSITE Screw Downspout Adapter and knotted limbs courtesy of

and knotted limbs courtesy of our best-selling Knotties®

Additional $40 Lab Analysis Fee Required

The Ultimate Bag — with Stretchable Strength

Positive on/off

16-Inch Caged Screen Feeder

Simpson Strong Deck-Drive™ DCU COMPOSITE Screw Downspout Adapter and knotted limbs courtesy ofThe 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