If you are restoring an original Mopar 1991-1993 grill, you will likely need to replace the thread-able plastic nuts that get pressed into the grill.
There are 8 of these nuts in the grill. Two for each headlight bezel, and two for each marker light screw to thread into.
We sell them as a set of 4 as many dont need to replace all of them.
This is Part #17 in the diagram below: