Chevy Bowties are cut sharply into the top of each wing nut. The lower ends of the shafts are manufactured with a wide shoulder for broad load distribution, and each wing nut is supplied with a separate stud which permits precise gasket positioning on the head prior to mounting the valve cover. Fits Chevrolet small block, big block, and V-6 with 1/4'' - 20 threads. 4/pkg.