i never did.  i put a nut on the stud on the carrier side, so i could snug the stud up against th carrier.  also made it easier to remove later on, nut would bottom out against the body of the stud. 

you want those studs tight, i've had a couple where they used the stud as the adjuster, threading it in or out of the carrier.  that is why they strip.  use the nuts on the outside to pull the carrier back.


but i don't have to worry about those studs anymore, the round stye carrier is so nice.