Flush Mount Output Jack - Barrel Mono for Guitar or Bass
For solidbody guitar. Accepts a standard 1/4" plug, and can be wired mono or stereo.
Overall length 2". 1/2"-diameter mounting hole, and at least 7/16" wood thickness required. Chrome.The short terminal is positive, the mid-length terminal is the "ring" (for stereo output, or for battery switching in mono wiring), and the long arm on the side is ground.