I recently had my truck in a body shop after getting hit with a sheet of ice from a school bus and most of the damage was to the grille area. The body shop installed a new grille but they are all the coarse thread screws and very loose instead of the course thread screws on the outside and the fine thread screws on the inside. I added a pic below, the fine thread screws I'm looking for are indicated by red arrows, the coarse thread screws are in black.

The only part numbers I can find are for 2010-2012 Ram 2500/3500 but I think they are the same as I've had to purchase one of the coarse thread screws to replace a broken one, the coarse thread into plastic and the fine threads into metal

Fine Thread screws(inner) Part# 6504785(I can't seem to find these for Ram, they only show up for Jeep Grand Cherokee's and a lot of websites show them as being discontinued.

Coarse Thread screws(outer) Part# 68084488AA

grille.jpg