This Electrical Jack set (1 Black, 1 Red) is ideal for building your own charging station or as a 12-24volt power access point for DC power supply applications.
They are designed to pass through wooden or metal facias up to 5mm thick (they are insulated and required a 6mm mounting hole).
These have 4mm holes to suit 4mm male banana plugs.
Rated to around 10amps.
Total length: 15mm
Mounting hole: 6mm