External engine fastener kit (includes right side engine cover, center engine/choke cable mount, lifter blocks, rocker covers, front engine upper mount nut, case bolts, timing cover, 1/4″ washers, 3/8″ HD washers, 5/16″ washers and 3/8″ lock washers). Features precision-rolled threads for optimum engagement, to prevent galling and promote more consistent torque loading. Wide underhead flange design provides even load distribution for optimum sealing of surfaces – preventing leaks. Tensile strength rated @ 170,000 psi; superior and stronger than OEM and stronger than grade 8 fasteners. Manufactured by ARP® to Feuling’s® exact specifications. Includes moly assembly lubricant for installation. Quality 12-point heat-treated stainless steel. Made in the U.S.A..