ARP 150-2505 Ford 6.0/6.4L PowerStroke Harmonic Damper Bolt Kit

As the crankshaft flexes and twists, the balancer absorbs incredible amounts of kinetic energy. To ensure that the balancer is locked in place, ARP has developed these ultra-strong 200,000 psi bolts that let you exert maximum clamping force. Special features of the ARP 150-2505 Harmonic Damper Bolt Kit include a 1/4″ thick wide-area washer and an extra-tall 12-point head that accepts a deep socket and eliminates the worry of stripping the head.