Suits sockets that fit 1mm and 1.5mm panels.
Bolts to 2020 or 2040 extrusions
Typical panel socket that fits it.
https://www.altronics.com.au/p/p8341-c14-male-socket-chassis-snap-in-fused-switched-10a-iec/
The author remixed this model.
Added bolt holes to match 2020 or 2040 extrusion.
Add cover. The writing will likely be upside down.