I needed a simple panel mounted push-button switch housing for a project so here it is if anyone else wants it. The base just attaches to the panel via 2 screws and the top half is just a just press fit over the base. Just line up the wires to the slots. Uses a push button switch that needs a 11.6 mm hole (threads) and the top width of the switch is 17.7 mm. (outer lip of plastic switch). Simple yet effective.