Red Loc Tite

How old is your bottle of loc-tite? It does go bad, especially if its over a few years old. The newer bottles usually have a one year expiry. (The older bottles don't have an expiry date) but I found if the bottle gets sticky or the label falls off its usually gone bad (becomes really watery and transparent) I heard the bottles breathe to keep the loc-tite from curing so when the bottle is like mentioned above then it's usually junk. I would try some of it on a spare nut and bolt and let it set overnight and see if it cures. I bought the loc-tite sticks and they seam to last a lot longer compared to the liquid and is much cleaner and easier to use (mine are about 5 years old and still are perfect)

I think the blue stuff is more then enough to keep it from coming loose IMO. Can you use a nylon lock nut instead?

Hope this helps