I replaced the roller on my window regulators on my '51 and the replacement rivets were semi-tubular. They take a tool to secure them. You can get them from various sources. You just tap them with a hammer. Here's a picture.
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Tubular rivet setters.png (127.33 KB, 121 downloads)


Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.