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: Steel Fastener Finish: Black oxide Fastener Head Style: 12-point Thread Size: M10 x 1.0 Underhead Length (in.): 0.925 in. Fastener Tensile Strength (psi): 190,000 psi Washers Included: No Benefits Forged from aerospace alloy Heat-treated prior to thread rolling and machining Applications 2012 – 2016 Subaru BRZ/Toyota GT86 2017 – 2020 Subaru BRZ/Toyota GT86 (manual transmission) What\’s In The Box? 8 – Bolts Warranty Manufacturers Standard Warranty