#10 x 2-3/4″ Simpson Strong-Tie DCU Collated T20 Cap Head Composite Deck Screws – 305 Stainless, Pkg. 1,000

The Simpson Strong-Tie Deck-Drive DCU Composite Screw is engineered for strength, clean finishes, and reliable fastening in composite and PVC decking projects. Featuring a cap head that prevents mushrooming, these screws ensure smooth, professional results across a wide range of composite decking brands. The Quik Guardcoated 305 stainless steel provides lasting corrosion resistance in everything from standard residential decks to harsh coastal environments.

Designed for efficiency, the DCU screw includes a tri-lobe thread design and unique cut point that penetrate dense composite material easily while reducing damage to boards. Inverted upper threads clear excess material for flush seating, while the 6-lobe drive provides secure engagement and reduces cam-out. The 2-3/8″ length is approved by Trex for composite decking applications and comes collated for use with Quik Drive auto-feed systems, id