Originally Posted by Evereddie
Using general engineering practices as a guide, if it was suppose to be that way there would be another locking nut on the bottom like above. Doesn't look right to me either.
The bottom nut, the single one does not need a locking nut. It is a Nylon locking nut and it WILL NOT turn without a wrench! They are used in the aircraft industry all the time and believe me, aircraft are MUCH more prone to vibration and nut loosening than any RV ever made.