Harmonic Balancer Bolt, 12-Point Black Oxide AR156-2501

Harmonic Balancer Bolt, 12-Point Black Oxide 156-2501 AR156-2501 fits Ford 4.6L-5.4L Modular M12 X 1.50 Thread x 1.800" UHL FORD BA 4.6L MODULAR V8 As The Crankshaft Flexes And T wists, The Balancer Absorbs In credible Amounts Of Kinetic En ergy. To Ensure That The Balan cer Is Locked In Position Arp Has Developed These Ultra Stro ng 200,000 Psi Bolts That Let You Exert Maximum Clamping For ce. Special Features Include 1 /4 Thick, Wide Area Washer And An Extra Tall 12-point Head T hat Accepts A Deep Socket And Aliminates The Worry Of Stripp ing The Head.