Precision J-form threads for optimum engagement, to prevent galling and promote more consistent torque loading Superior in strength and performance; designed to exceed needs of high-performance engines Kit includes eight cylinder studs, moly assembly lubricant and thread sealant Stock replacement; reusable studs recommended for all V-Twin engines Manufactured by ARPĀ« to Feuling's exact specifications Made in the U.S.A.. STUD,CYLINDER KIT TCAM