These cam action lever fasteners allow for quick fastening and unfastening without the use of tools. They allow the user to tighten by threading like a traditional fastener however, for final tightening the cam lever is pushed downward. To unfasten, the cam lever is pulled up releasing clamping force and allowing the fastener to be unthreaded. They are ideal for quick change operations where parts only have to be loosened and not completely unassembled. The handle and thrust washers are made from plastic. The studs are made from 303 stainless steel and have a natural finish.