Originally Posted by
BarracksSi
Right, and that's why I keep saying to be careful with it. It feels like the threads are at least very close to the same pitch, but I'll bet the diameter is off. It's not good for mounting wheels onto a car (look for video of an RX-7 whose wheels popped off because of lug nuts that didn't quite match the lug studs), but good enough for aligning a hanger a couple/few times.
Derailleur hangers are threaded M10 x 1. Quick release rear axles are typically this same thread, but usually have only about 4mm protruding past the lock nut. Most (but not all) solid axles are 3/8" x 26tpi. This is close enough to thread into an M10 x 1, but as I said before, the fit will be sloppy. I would be concerned about damage to the hole and threads twisting around on there with all that play.