The Swivel Stud set by GroveTec provides all essential components for installing swivel studs on a beloved traditional rifle stock. Included in the package are a 7/8" machine stud with a nut a 3/4" wood screw stud and two washers ensuring a precise fit and finish. Opt for GroveTec for a reliable choice. Featuring a black oxide finish the set is proudly made in the U.S.A.