chrome moly steel 12 pt nuts and a 1/2 oz. pack of ARP Ultra-Torque fastener assembly lubricant.
All Pro Series ARP2000 studs are centerless ground, heat treated prior to thread rolling and machining,
and are nominally rated at 220,000 psi. These fasteners deliver a 35% increase in tensile
strength over the OEM Torque To Yield (TTY) head bolts.
To Download this Press Release in its entirety – ARP PR – 207-4206