STEEL CLASS 8.8 HEX CAP SCREWS ARE MEDIUM-DUTY, COMMON FASTENERS USED FOR JOINING MANUFACTURING PARTS, REPAIR PARTS, AND CONSTRUCTION MATERIALS. THESE SCREWS ARE HIGH TENSILE, QUENCHED, AND TEMPERED. THEY ARE HARD, YET MALLEABLE, ALLOWING THEM TO WITHSTAND SHEER FORCE. THESE SCREWS COME IN A BLACK OXIDE, ZINC-PLATED OR ZINC YELLOW FINISH, OR MAY BE HOT-DIPPED GALVANIZED FOR STRONGER CORROSION RESISTANCE. BLACK OXIDE SCREWS ARE CORROSION RESISTANT IN DRY ENVIRONMENTS. ZINC PLATING AND ZINC YELLOW COATINGS HELP PROVIDE DURABILITY IN WET ENVIRONMENTS. HOT-DIPPED GALVANIZED STEEL SCREWS ARE MORE CORROSION RESISTANT THAN ZINC PLATED SCREWS AND HAVE A THICKER COATING THAN OTHER FINISHES.
