Once you have got both of them the process becomes easy.
Fix stripped out hole in sheet metal.
If this is not possible you can try an epoxy in the hole to help grab the screw.
The original screw is a sheet metal screw while rivnuts are designed for machine screw threads.
The copper is soft enough for the threads of a screw to cut into and take hold.
How to fix a stripped screw hole in metal.
On the flip side one could drill out the other holes and place rivnuts in those locations providing matches if desired.
Then pound all around the hole with the hammer working the metal towards the center of the hole.
The metal does thin out however carefully tightening of the screw upon re assembly.
The first method on how to fix a stripped screw hole in metal is through using a tap and die set.
Back up the offending hole with a block of steel because i couldn t get any other tool to fit.
If you are trying to repair a stripped screw hole in a piece of metal then quite logically avoid using wood if possible.
The stripped screw hole problem was routine for a job i was doing.
I have not tried it in sheetmetal but it might just work.
Lastly using an anchor may be an option either plastic or a soft metal like lead that will conform to the hole.
Let s have a look.
I use solid copper wire to take up the gap in stripped holes in the fiberglass.
Instead use a plastic wall plug if you can find a size that will work for you or get a stripped screw hole repair kit that specifically states it will work with metal.
If the op has a minor ocd issue with mismatched screws this solution will not correct that aspect.