Looking for these original OE cage nuts

[LITTLECHRIS]

Hey guys,

I’m working on putting my 1934 truck cab back together, and I am missing some cage nuts that are riveted into D-shaped holes. Does anyone one know if there is a source for them? I’ve checked a few of the parts suppliers but have only come up with the standard cage nuts or D-clinch nuts. The 1/4-20’s attach the roof to the pillars and the 10-32 hold in the windshield. Please look at the pics to see what I’m after.

THANKS!