The horror that was aluminium engine. You could open and close a screw only twice and goodbye threads.

The trade-off being (I'm guessing) that those threads would be pretty easy to re-tap by hand?

	▲	dnemmers an hour ago \| parent [-]
		I think the usual move once threads are gone, is to move to a steel threaded insert (helicoil, time-sert, etc) https://www.mcmaster.com/products/thread-repair-inserts/thre...