Square Peg wrote:
....

I have a soldering iron (if it still works). I can certainly give that
a try.

Probably won't work well on the shiny metal...

The Loctite or peening/spreading/thread-galling suggestions are good.

I've found the nail polish/paint/primer route to (usually) be enough, too.

The only different suggestion I've not seen that has worked on occasion
is a drop of epoxy in a pinch works like Loctite as well...

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