Those studs are for two missing clips (as well as for the clips you currently have). Chrysler calls them retainers.
For the missing retainers (or ones you might have broken) are:
Door:
6003332 and 6003755 (I have no idea what difference is).
Generally I can Google the part number and I can see an image of the part - but no luck with images of these two part numbers.
Fender retainers:
6003332 and 6003581 (again, I have no idea what difference is).
A few short years ago, with the part number, you could Google the part, match it up online and order away inexpensively (I’d rather not mess with an old plastic clip that could break just before you take it to a show). Nowadays, that is becoming a bit more difficult to do (and not sure why).
BudW