#7 x 1-5/8" Simpson Strong-Tie T15 Trim Head Deck Screw - 316 Stainless Steel, Black, Pkg. 20 Collated Wood Deck Screws Conquest Large Diameter Concrete Screws

Conquest Large Diameter Concrete Screws with a zinc finish deliver serious holding power for heavy-duty concrete and masonry applications

Shank Type: Smooth shank design for easy driving and secure fastening

5-inch diameter lally columns and 3

the DWP includes a 6-lobe drive for secure engagement that minimizes cam-out and extends driver bit life

#7 x 1-5/8" Simpson Strong-Tie T15 Trim Head Deck Screw - 316 Stainless Steel, Black, Pkg. 20 Collated Wood Deck Screws Conquest Large Diameter Concrete ScrewsThe Simpson Strong Tie Trim Head Decking Screw is designed for PVC and composite decking projects where corrosion resistance and appearance matter most. Made from 316 stainless steel for lasting durability, these screws perform reliably in marine or high exposure environments. Painted head options in 13 colors are matched to leading decking brands for a seamless, concealed finish. For a full reference, see the Composite Decking Color Matching Guide.