I've been told that at least 3 turns of thread should be visible at the end of a bolt to ensure that the nut will maintain full tension. Can anyone explain the mechanism behind this? I'd like to know as I need to cut some bolts short in order to weld a small nut (o.d. similar to the diameter of...
We have exploding balls quite a bit. The current thoughts are that the outside of the ball gets work hardend at a high temp (say 40C). Then the ball shrinks as it cools...
