Bronze Star General Purpose Corrosion-Resistant Star Drive Wood Screws #9 x 2-3/4-Inch. Use T25 bit and conveniently packed in a reusable 1 lb container. Includes one Free Bit-Inch. For all exterior or interior applications using hard or soft woods, chipboard and other projects where a corrosion resistant coating is needed. Triple dipped coating has shown over 1200 hours of corrosion resistance in both salt spray testing and treated lumber. Our Bronze Star screws are excellent for Decking, fencing, Grit to Post, siding, finish work and any exterior application where a coated treated lumber compatible screw is needed.