[c6ae]

Mcmaster-carr has several types of rivet set nuts available
example's are
3/8-16 # 98560A591

or 3/8-16#95105A159
Pay particular attention to the material thickness range.

There are available nuts with welded tabs to assist instalation in blind holes and to prevent turning (I just make these as needed, but I have seen them in OEM instalations).

and also "weld nuts" and "press in captive nuts"
search Mcmaster

I have drilled and tapped pieces of plate or flat bar to slip in behind removed ruined factory weld nuts in mustang frames -around the steering box in particular. They can only rotate 1/4 turn before they strike the edge of the box and stop.