These cam handles 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 cam lever and washer are made from steel with a black oxide finish. The brass pad and hex socket setscrew prevent the handle from backing off the thread.