Adafruit protoboard DIN rail mount

Been building a bunch of small PLC-like things using ESP32s and similar, and wanted a nice way to mount the PCBs they live on in an enclosure. This is a minimal DIN mount, that you can mount an Adafruit 5cmx7cm protoboard on

The 4 screw holes accept M2 screws, which is what the protoboard is designed to use. In order to save on complexity, the holes are smaller than most M2 screws. Drive the screw in directly to the plastic, it should hold fairly fast without fasteners. You can pop a nut on the other side if you need to, use a longer screw, but I haven't had to.