McMaster-Carr calls them weld nuts.
They hold the side cubby boxes to the main panel.
They seem to be spot welded in place. One has come off.
I have a good MIG/TIG machine, but not a spot welder.
I had an idea to drill a hole or two and tack weld it from the back side.
Or I could buy a spot welder.
So how would you chaps fix this one?