Why would this be?

[DouglasReid]

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.

[bubbles]

Originally Posted by Evereddie

You could have a bracket with a short sleeve built in. Then it wouldn't be a bracket edge rubbing on the threads.

Still wonder why the clean threads. Maybe someone in manufacturing put thick grease on that section knowing it gets a lot of movement and scrapping.

It's hard to see from the photo angle but there is plenty of clearance in the hole for the threaded rod to pass through. I've got 6 of these on my unit and have adjusted every one of them and the clearance is quite sufficient. There is no rubbing on the threads of my unit.

[DDC]

Originally Posted by Evereddie

Still wonder why the clean threads.

Could be because it is new.