#10 x 2-3/4" Simpson Strong-Tie DCU T20 Cap Head Composite Deck Screw - 316 Stainless Steel, Brown 05, Pkg. 350 Pipe Flashing Accessories The Rod Coupler head is

The Rod Coupler head is designed for 3/8" threaded rod

5 Column Cap w/SDS Screws - Stainless Steel enhances the strength and stability of your construction projects

This product has been designed to accommodate the full range of sizes for the epoxy-coated and stainless steel screws

Whether you're fastening ledgers

This will only fit a post that measures an actual 4x4"

#10 x 2-3/4" Simpson Strong-Tie DCU T20 Cap Head Composite Deck Screw - 316 Stainless Steel, Brown 05, Pkg. 350 Pipe Flashing Accessories The Rod Coupler head isThe 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