What is the Minimum Length of Bolt?
In order to measure the minimum length of bolt required many factors to be considered such as the strength that is needed, other fasteners that are put on the bolt, and vibrations.
A simple way is to exceed about 2 full threads outside the nut, washer (2 protruding threads). However, if the back area does not allow any protruding threads, other calculations are necessary. Again, each joint and environment has different calculations, so those factors need to be considered.
