RE: BME Aircraft 30% Extra330L
I don't know what they put in the threads, but that stuff is a b$tch. I had to clean out all of mine before every trying to install them. You don't need any kind of thread locker on the actual control, just on the horn itself where it meets the control surface. I did like the hardware other than the crap in the threads, but hey what can I say, the plane is a blast to fly.