Welcome to Star Fasteners Plus Silver Star Stainless Steel. The Ultimate Corrosion Resistant Screw! 305 stainless steel for chemically treated materials, high moisture, or other caustic conditions. Available in 1-1/4” to 4”. Bronze Star AC257 Approved. The Ultimate Exterior Coated Screw! Triple Coated Bronze great for use with chemically treated lumber. 1200 hour ACQ ...