Clips for side molding/ trim, 1970 Dart

I'm trying to compile all the parts I will need to put my Dart back together after she gets paint. The side trim was removed when I got the car, but I have a complete set of correct trim to put back on. (If it weren't for the large holes, 1/4", I would fill them and eliminate the trim).

Can somebody show me what the clips / bolts / retainers look like so I can find them? Like I said, the holes are right at 1/4 inch. I don't know what they look like, or what they are called.

Thanks

Mark