GETTING RID OF THE LOCKTITE
Here's a couple things I do to stop the need for Locktite. Some slots Dremeled in the nuts, they bite in the wheel's plastic and they don't come of by themselves and a groove around the adapter for an O ring to keep the set screw from backing out. This has been race and bash tested for a long time. It works.
I mount the adapter on a spare stub axle so that I can chuck it in the drill press. I make it turn at medium speed and with a cut off wheel on my Dremel, I can make a clean groove for the O ring.