General Motors screw anchor nut.

I was installing a new dash pad in my 1982 GMC truck and one of the oval inserts for the four screws holding the passenger side was missing.

So I measured the hole and quickly whipped up this design to fit it. I printed in Excelvan clear PLA at 0.3mm with 50% infill and it holds the screw just fine.

New ones are only 95 cents but then there's shipping and I needed it *now*, not in a few days.