Description: (from arp-bolts.com) Flywheel and Flexplate bolts play an important role in the performance and safety of race cars and street machines alike. That's why the fastener experts at ARP have developed special bolts that are far superior to OEM hardware. These High Performance series bolts are forged from aerospace alloy and heat-treated prior to thread rolling and machining. These bolts feature a flat, 12 point head design and larger than stock shank diameter for increased strength and improved flywheel register. The High Performance series are rated to 180,000 psi.
