Replacement plastic nut to hold the firewall insulation mat on my Scion tC. This will likely fit other Scions and Toyotas. I couldn't find a replacement part so I just made my own. I will update this description with the original part number if I can find it.

I also included a blank nut without the threaded hole if you need another size. Tinkercad makes subtracting threads or another shape very easy.

Print at 02.mm layer height in ABS or PETG. PLA will likely not work because of the high temps in the engine bay. Do not use supports as they will simply plug the threaded hole.