ARP's Harmonic Damper Bolts safety keep the damper locked into place as the crankshaft flexes and twists and the harmonic damper absorbs incredible amounts of kinetic energy. These damper bolts are ultra strong, 190,000 psi tensile strength that exerts maximum clamping force and are made from heat-treated 8740 chrome moly steel with heavy-duty black oxide finish. Available with a 12-point or square drive head.
12-Point Bolt: Features a 1/4" thick, wide area washer and an extra tall 12-point head accepts a deep socket and eliminates the worry of stripping the head.
Square Drive Bolt: 1/2" square drive forged into bolt head, accepts a standard 1/2? drive ratchet or breaker bar to facilitate rotating the crank assembly.
WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.
WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.