#10 x 2-3/4" Simpson Strong-Tie DCU T20 Cap Head Composite Deck Screw - 316 Stainless Steel, Gray 05, Pkg. 1,750 Quik Drive Subfloor/Underlayment Screws It is easy to bend

It is easy to bend into smooth curves and holds its shape without the need for fasteners

enhancing the strength of engineered wood systems

Buttress threads available in #8 sizes for added holding power

Ensure the spike is level and properly aligned before securing the 4x4 post into the bracket using appropriate fasteners (sold separately)

and advanced DIYers looking for a serious upgrade from plastic or wedge anchors

#10 x 2-3/4" Simpson Strong-Tie DCU T20 Cap Head Composite Deck Screw - 316 Stainless Steel, Gray 05, Pkg. 1,750 Quik Drive Subfloor/Underlayment Screws It is easy to bendThe 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