Finally getting to it!!! 1970 Duster 340

I finished work on the trunk today. Installed the right side marker bezel along with the spare tire rim and jack components. Rear wiring harness is in place along with new light bulbs. On thing that I need to do is to figure out what size screws or bolts are needed to finish installing the plastic tail light covers. I don't remember what was on originally and I can't find them in my bagged and tagged inventory. :(