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.
Thread: M11 x 1.5
Tensile strength: 200,000 psi
Underhead Length: 0.880"
For instructions, reference part number 244-2901 on ARP's site:
https://tech.arp-bolts.com/instructions/244-2901.pdf