Originally Posted by
Jesse Open
I use the bolt thru at times too, but not very often. Some brands are better than others but they too have been known to fail. As for "friction" any differences are slim but a steel pin in a nil clearance nylon hole, by nature has less inherent friction than a ball and socket. I always place a washer between the ball top and the retaining screw head. Cheap insurance against their most common failure mode.
Of course none of that has a single thing to do with the original jam nut observation.
With metal to metal clevis to rod, a simple jam nut is in order for reasons given.
A metal clevis in a nylon control horn is very low friction, if everything is in perfect alignment.
I use blue loctite for metal/metal. Anything that keeps vibrations from wearing the two metal parts against each other seems to work. Good quality rods and clevises are important too. I file13 the arf stuff.
Good tip on the use of the washer to keep the link from slipping off in the event of failure.