It’s basically plastic parts used by the cars that you might find in the Tamiya thread
If there is sufficient material in the threaded bosses, and your use case is frequent assembly/disassembly, I'd look at brass inserts, e.g. http://www.theinsertcompany.com/brass_threaded_inserts.php
look at brass inserts
interesting - thanks.
@Howard started
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If there is sufficient material in the threaded bosses, and your use case is frequent assembly/disassembly, I'd look at brass inserts, e.g. http://www.theinsertcompany.com/brass_threaded_inserts.php