Flywheel Bolt Kit by ARP These premium-grade ARP Pro Series flexplate bolts are far superior to OEM hardware. Forged from aerospace alloy and heat-treated prior to thread rolling and machining, they feature an exclusive, flat 12-point head design and a larger-than-stock shank diameter for increased strength and improved register. Features Fastener Material: Chromoly Fastener Finish: Black anodized Fastener Head Style: 12-point Thread Size: M10 x 1.0 Underhead Length (in.): 0.800 in. Fastener Tensile Strength (psi): 180,000 psi Washers Included: No Benefits Forged from aerospace alloy Heat-treated prior to thread rolling and machining Applications 1977 – 1980 Ford Courier 1978 – 1980 Ford Fairmont 1974 – 1980 Ford Mustang 1971 – 1980 Ford Pinto What\’s In The Box? 6 – Bolts Warranty Manufacturers Standard Warranty