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. These adjustable cam levers feature a slot on the top of the stud to allow for fine adjustments of the tensioning lever, without having to rotate the handle. They are ideal for quick change operations where parts only have to be loosened and not completely unassembled. The aluminum handles have a black powder coat finish. The steel studs have a blue chromate finish. The thrust washers are made from fiberglass reinforced plastic.