31 spline Dutchman axles with 1/2" thread on the studs. The first time it happened I thought it was a fluke so cranked them up tighter. The second time a couple backed out I used Thread locker and still had a couple back out. It made a bit of a mess on my brake hardware with a backed out stud swinging around in their. Would it be ok to hit each one on the backside with a spot weld? Or anyone else have any other solutions.