Simpson Strong-Tie 0.59" x 4" SDHR Metal-To-Wood Combo-Head Screw - Black E-Coat, Qty. 25 Bundle The top and flap are

The top and flap are constructed from heavy-duty 18 oz vinyl-coated polyester

Pre-drilled holes simplify installation with anchoring hardware (sold separately)

each featuring 10 pre-drilled holes for quick installation using the included hardware

Check with your trailer manufacturer on the best mounting approach

Made from corrosion-resistant 304 stainless steel

Simpson Strong-Tie 0.59" x 4" SDHR Metal-To-Wood Combo-Head Screw - Black E-Coat, Qty. 25 Bundle The top and flap areThe Simpson Strong Tie SDHR Combo Head screw is built for speed, strength, and versatility in fastening cold formed steel (CFS) to wood. Designed for indoor applications, this self drilling screw features a #3 drill point that quickly penetrates steel up to 16 gauge thick, making it a reliable choice for contractors working in light framing, mechanical fastening, or general construction jobs. Its combo head design allows installation with either a