ARP 135-2501 Harmonic Balancer Bolt Kit

As the crankshaft flexes and twists, the balancer absorbs incredible amounts of kinetic energy To ensure that the balancer is locked in position, ARP has developed these ultra strong 200, 000 psi bolts that let you exert maximum clamping force Special features include 14 inch thick, wide area washer and an extra tall 12-point head that accepts a deep socket and eliminates the worry of stripping the head Square Drive Balancer Bolts ARP offers a special version of its rugged 200, 000 psi rated balancer bolt that can accept a standard 12 drive ratchet or breaker bar to facilitate rotating the crank assembly 12 square drive forged into bolt head, enabling the rotation of an engine with any 12 drive tool Made from heat-treated 8740 chrome moly steel with heavyduty black oxide finish Harmonic Balancer Bolt Kit 12Point Head Diameter 12-20 Socket 58 UHL 155