There are flat ends up near the rubber boots for turning with a wrench.This is where I turn to center the steering wheel.I was turning there to adj. tie rods, I suppose that is why my steering wheel center changed.If I turn all the way clockwise will it eventually tighten up and then I can back them off to center st. wheel? What I'm trying to ask is, is the inner end of the tie-rod at risk of falling off because I turned that clockwise and counterclockwise to align wheels.Thanks....got it ,sometimes you have to be smarter than the bolt,not always easy for me.:cool2: