How do you keep a bolt from loosening up?
Similarly one may ask, how do you keep a bolt from loosening?
- Thread a self-locking nut on the bolt and tighten with the appropriate wrenches.
- Slip a split, or lock, washer over the bolt end.
- Paint thread-locker compound all the way around the bolt threads as far down as possible.
- Thread the nut on the bolt and tighten with the appropriate wrenches.
Herein, why do bolts come loose?
It is widely believed that vibration causes bolt loosening. By far the most frequent cause of loosening is side sliding of the nut or bolt head relative to the joint, resulting in relative motion occurring in the threads.
Step 1: Use Some Muscle. Try a 6-point wrench or socket on your seized nut/bolt. Start by rocking the bolt by tightening then loosing, this may be all you need to break through the rust. Try and avoid 12-point wrenches and sockets as they likely to slip and strip the bolt head.