Feature precision rolled threads for optimum engagement, to prevent galling and promote more consistent torque loadingWide under-head flange design provides even load distribution for optimum sealing of surfaces - preventing leaksTensile strength rated @ 170,000 psi - superior & stronger than OEM & stronger than grade 8 fastenersEliminates thread problems associated with chromed hardwareManufactured by ARP® to Feuling’s® exact specificationsFeatures a SHOW polish corrosion-resistant finishQuality 12-point hardened stainless steel bolts