ARP Ultra-Torque Fastener Assembly Lubricant - 0.5 fl oz Sachet

The ARP Ultra-Torque Fastener Assembly Lubricant prevents seizing on threaded fasteners, along with rust and corrosion.Designed to reduce tension pre-load scatterEliminate the need to cycle high performance engine fastenersPremier blend of extreme pressure lubricantsIncredible anti-seize characteristics that perform amazingly wellBecause of frictional inconsistencies with oil, moly, and other lubricants it takes multiple cycles of torqueing the bolt, loosening it, and tightening it again to obtain the required preload or stretch. Typically, when a fastener is first tightened, friction is at its highest point and the preload value or stretch is low.As the fastener is cycled numerous times the friction decreases and the preload increases. This phenomenon is called "preload scatter."With ARP Ultra Torque assembly lubricant, a fastener need only be torqued once to get within 5 percent of ideal preload, and it remains consistent through all subsequent cycles (from race-prep machining through final assembly).Moreover, given the inconsistencies of ordinary lubes, it is quite possible for adjacent head bolts or studs to have vastly different preloads.This scatter causes bore distortion, hampers piston ring seal, and leads to poor head gasket sealing.