We are working to finish the interior trim in a '49 3100. We are having difficulty finding replacement parts for the captive style nuts that hold the lower panel on the forward edge of each door. Some of them broke out when the truck was disassembled.

These are the panels that cover access hole and the bolts that attach the lower hinge to the door. The hardware is 1/4-20 screws. My searches lead me to pictures of the door interior panel but no close-ups of the nuts or details about them.

Are these regular "cage" nuts or are they some type of "rivnut" that expands to fill the hole?

Where can we buy them?

Many thanks for the ideas and help!


Rusty