Hey Guys, I wanted to take off the plastic clevis's on my plane and put the steel ones on. I'm putting on the Great Planes 2-56 steel clevis's and they seem to be the right thread but go on real easy. The plastic 2-56 clevis's I did have on the rods fit very tight but I don't want to use them because I think the steel ones would be better. What do I do to get the steel ones to fit tighter? Do I put some thread lock on them or what?

just make sure the threads on the rods you are using are 256 also,most metal ones i have used do fit a little loose.i use the plastic ones and haven't had any problems with those,but if you are flying a fast or aerobatic type plane i think i would use either soldered or metal ones with lock nuts.i also always use fuel tubing at the clevis after i connect them it holds them tight and keeps them from coming loose.

Many ARF's come with metric rod and are slightly smaller. Like horace said Do not use 2-56 roll threaded metal clevis with these. Actually many of the plastic clevis are fine with the best quality being great plains or Dubro as well as some others. People tend to get unreasonably paranoid about plastic clevis when in reality the rolled and folded steel types comes with their own set of failure modes that plastics do not. These can over time from vibration and use can open the fold slightly and strip threads.

Whatever you choose to do, never ever use a steel clevis on a metal throttle arm (most are metal) or for that matter an easy just or S bend this is a frequent cause of mystery radio failures from vibration induced stray RF noise.

John