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Cool ok. It’s basically plastic parts used by the cars that you might find in the Tamiya thread.
But I’d be pissed if I wrecked all the plastics on a car in an attempt to make it easier to maintain and more robust.
Howard-
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
gbj_tester
Depends what life-supporting loads you apply to the threads after tapping. If the tap drill size for the machine screw thread is smaller than the OD of the self tapper, you'll end up with bits missing from the threads, so they will be weaker than a hole tapped in virgin stock. Whether that's a material issue depends on the design.