200 Qty 1/4-20 x 2-1/2 Inch Type F Flat Head Thread Cutting Trailer Deck Screws,with T30 Star Drive Bit for Floorboard & Trailer Deck & Wood to Metal Applications

Heavy-Duty Trailer Floor Application: Engineered for trailers, utility trucks & heavy equipment flooring. Securely fasten wood, metal, or composite materials with vibration-resistant hold, even under extreme loads and repeated impacts. | Thread Cutting Design: Sharp Type F tip and precision-cut threads bite into tough materials instantly, reducing installation time by 50% perfect for both professionals and DIYers. | Included T30 Star Drive System: Comes with 1 industrial-grade T30 star drive bit. Anti-camout grooves maximize torque transfer, eliminating stripped screws and frustration during high-pressure installations. | Military-Grade Corrosion Protection: Black phosphate coating exceeds ASTM B633 standards, offering 3X more rust resistance than basic zinc plating. Withstands rain, snow, road salt, and harsh chemicals for years of service. | Flush-Mount Safety Design: 80 flat countersunk head sits perfectly flush with surfaces. Eliminates snag hazards on cargo floors while maintaining structural integrity under heavy traffic.