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 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. *Square Drive Balancer Bolts* ARP offers a special version of its rugged 200,000 psi rated balancer bolt that can accept a standard 1/2˝ drive ratchet or breaker bar to facilitate rotating the crank assembly. * 1/2˝ square drive forged into bolt head, enabling the rotation of an engine with any 1/2˝ drive tool * Made from heat-treated 8740 chrome moly steel with heavyduty black oxide finish PartNumber : arp207-2501 Description : Harmonic Balancer Bolt Kit; 12Point Head Socket : 19mm Diameter : M14 x 1.50 UHL : 1.525 1990-1998 Eagle Talon TSi L4.1997cc Engine Components::Hardware Kits - Other 1990-1994 Mitsubishi Eclipse GS L4.1997cc Engine Components::Hardware Kits - Other 1990-1999 Mitsubishi Eclipse GST L4.1997cc Engine Components::Hardware Kits - Other 1990-1999 Mitsubishi Eclipse GSX L4.1997cc Engine Components::Hardware Kits - Other 1996-1999 Mitsubishi Eclipse Spyder GST L4.1997cc Engine Components::Hardware Kits - Other 1990-1994 Plymouth Laser RS L4.1997cc Engine Components::Hardware Kits - Other