#10 x 2-3/4" Simpson Strong-Tie DCU T20 Cap Head Composite Deck Screw - 316 Stainless Steel, Red, Pkg. 70 Deck Screws Diaphragm Connection: Designed to connect

Diaphragm Connection: Designed to connect adjoining wood structural panels in diaphragm systems

#5 drill point pierces heavy-gauge steel quickly and cleanly

Crafted from carbon steel and finished with a zinc coating

Securing steel and insulation to wood substrates

#10 x 2-3/4" Simpson Strong-Tie DCU T20 Cap Head Composite Deck Screw - 316 Stainless Steel, Red, Pkg. 70 Deck Screws Diaphragm Connection: Designed to connectThe Simpson Strong Tie Deck Drive DCU Composite Screw is designed for composite and PVC decking, trim, and cladding where strength, clean finishes, and durability are a must. Featuring a cap head that prevents mushrooming, these screws ensure a smooth, professional look across all major composite brands. The Quik Guardcoated 316 stainless steel offers dependable corrosion resistance for everything from residential decks to high exposure and marine