ARP 150-2501 Chromoly 12-Point Big Small Block Ford Harmonic Balancer Bolt

As the crankshaft flexes, the balancer absorbs incredible amounts of energy. ARP balancer bolt kits will ensure that your balancer is locked into position. They feature a 12-point head that accepts a deep socket to eliminate the fear of stripping the head.

Thread Size: 5/8-18 in.
Underhead Length (in): 2.050 in.
Head Style: 12-point
Washer Included: Yes
Fastener Yield Strength (psi): 200,000 psi
Fastener Material: 8740 chromoly
Fastener Finish: Black oxide