− Decrease quantity for Rocker Arm Nuts, Roller Rockers, Stud Girdle, 7/16 in.-20 Thread, .750 in. Outside Diameter, Set of 4 Quantity + Increase quantity for Rocker Arm Nuts, Roller Rockers, Stud Girdle, 7/16 in.-20 Thread, .750 in. Outside Diameter, Set of 4 Add to cart