The point I was making is a nyloc is no good as a locking fastener unless the threads of the bolt go all the way thru the nylon and 3 threads are showing beyond the end of the nyloc. As far extra threads showing on the other side, that means the bolt is not the proper one. There should be no threads thru the mounting; only unthreaded bolt shank. The proper length bolt has just enough threads for a washer, nyloc with at least 3 threads showing. Any more, or less, the bolt is not the proper length and the combination (nut/bolt) is subject to failure. Aviation grade bolts come in increments of 1/8" for proper length sizing. They only have enough threads for one washer, nyloc, and 3 threads showing beyond the nyloc.
Yes, I know. A Ford Raptor is not an aircraft, so one can do whatever they want. But in off-roading there are far more stresses than typical, so it would be beneficial to adhere to stricter standards. At least in a truck, if something happens, you can pull over to the side. Aircraft don't enjoy that benefit, as everything has to be perfect from the beginning.
Cheers