Ordered the Oaty's from Lowes, will do a locker pickup rather than walk around looking for it.Try a real thread sealant. You'll be surprised. I hate working with it as it's messy, but it works so much better than tape, it is well worth that slight headache. If it happens to be Loctite brand, fine, but you don't need/want a threadlocker.
Worth a try.
Thanks again.