How do you guys secure trailer balls? I have had them come loose in the past and it is always a fear of mine so I always put a a small tack weld between the nut and threads after I torque it down. I don't get it hot enough to affect the temper of the ball just enough weld to prevent it from unthreading. Was talking to a buddy and he said he tacks the base of the ball to the mount so he can tighten the nut without it rotating then tacks the nut to the bottom of the mount without using a lock washer. Just curious what others are doing.