How to remove door check strap on 62 Valiant?

Yea, you have to remove the rivet. I use a screw thing that you can get at an office supply company to replace it. It is a thing they use to assemble documents in a binder. It is a low profile screw and a little threaded part. They come in different lengths so you need the short ones. I can post a picture if you can't picture what am describing.