#10 x 2-3/4" Simpson Strong-Tie DCU T20 Cap Head Composite Deck Screw - 316 Stainless Steel, Tan 03, Pkg. 70 Large Diameter Tapcons Ring shank increases withdrawal resistance

Ring shank increases withdrawal resistance to provide a secure attachment

Avoid use in high-moisture or corrosive environments

is 16 threads per inch and includes a 5/16" hex head (replacement driver bit — BITHEXR516-134)

For load-bearing walls

The Simpson ABW46Z 4x6 Adjustable Post Base - Zmax Finish is designed to securely attach wood posts to existing concrete

#10 x 2-3/4" Simpson Strong-Tie DCU T20 Cap Head Composite Deck Screw - 316 Stainless Steel, Tan 03, Pkg. 70 Large Diameter Tapcons Ring shank increases withdrawal resistanceThe 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