Short banana jack is a panel-mount socket for 4mm banana plugs with any length. Can be mounted on metal surfaces with up to 1 mm, and plastic or wood surfaces with up to 4 mm thickness. It mounts on a 8mm hole. The overall length is 13 mm. The face outer diameter is 11 mm.

The socket hole in short banana plugs is open ended, that is why it can receive any length banana jack. Internal connection is made by soldering to a tin plated pierced lug terminal.