Switchcraft 1/4″ Guitar End Pin Jacks feature two or three conductors and long threaded bushings suitable for mounting into panels and chassis up to 1.25″ thick. The metal bushing helps to eliminate hum pick-up, making these jacks ideal for musical instrument and speaker connections. Switchcraft 1/4″ Guitar End Pin Jacks mate with standard 1/4″ phone plugs and mount in a single 0.469″ diameter hole. The jacks are offered with or without a cable clamp. Additional options include nickel, brass, or black satin chrome finish.