ARP rear motor cover fasteners are designed to attach the rear motor cover on your Chevrolet LS series engines. They are available in your choice of steel or stainless steel, and with either hex or 12-point fastener head styles.Rear Motor Cover Bolts, 12-point Head, 8740 Chromoly, Black, Washers, Chevy, V8, LS, KitFeatures:Washers Included: YesFastener Head Style: 12-pointFastener Yield Strength (psi): 170,000 psiFastener Material: 8740 chromolyFastener Finish: Black