Switchcraft stereo Input jack 1/4 nickel USA

1/4 Input Jack, Stereo, Switchcraft #12B, with nut and washer.  A stereo input jack is used for stereo wiring, or to turn on/off onboard active systems when the plug is inserted. Requires 3/8"-diameter mounting hole; 3/8 x 32 threaded portion is 1/4" long.