#10 x 2-3/4″ Simpson Strong-Tie DCU Collated T20 Cap Head Composite Deck Screw – 316 Stainless Steel, Tan, 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. Made of 316 Stainless Steel with a Quik Guard coating the DCU 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