Need help identifying these pieces

Hey forum. I am in the middle of a resto on my '72 dart. I am looking for help identifying what the rubber seals/plugs are called that seal the door hinge bolts? I believe there are square rubber pieces and round rubber pieces needed to seal the various hinge bolts.

Looking for replacements. I have uploaded an image of what I am looking for. Any help you can offer is much appreciate. Thanks in advance