You are buying forty five (45) NEW fasteners. They are 3/16" black phosphate thread cutting nuts that fits Chrysler, DeSoto, Dodge, Plymouth, Jeep & AMC vehicles. These nuts are for a 3/16" diameter smooth stud. They have a 3/8" hex and a 5/8" flange diameter. They are great for ornaments, name plates, script, emblems, etc...  Please compare your application to the sizes and photos that we have listed as some later year emblems may have metric studs.