[DanEC]

Get the speed bleeders with the thread sealant already applied. I think Dorman carries them. They should be good for a number of brake bleeding events - you don't need to loosen them much for them to bleed fluid. If you do eventually get one that you suspect is starting to leak around the threads, then get some orange thread locker that is meant to seal thread connections that are loosened from time to time and apply some of it. Speed bleeders make bleeding brakes far simpler.