Spark plugs used for both terminal nut and threaded stud connection types may come with a removable terminal nut. In this case the plug is manufactured with a threaded terminal stud, then a screw-on terminal nut is added to the plug or package. This allows the plug to be used with either connection type.
Spark plugs used for both terminal nut and threaded stud connection types may come with a removable terminal nut. In this case the plug is manufactured with a threaded terminal stud, then a screw-on terminal nut is added to the plug or package. This allows the plug to be used with either connection type.