I'll try to fill in til Skip shows. Nail polish is lacquer, and has been used as cement in flies and jigs for a long time. In the fly tying area at most shops you will find a needle tip applicator bottle with a wire looking plug that goes into it and keeps it clear. Buy one of those bottles, a bottle of Sally Hanson's hard as nails in the nail polish area of wally world, and the smallest container of lacquer thinner that you can find. Pour about 1/3 of the applicator bottle with Sally, and another third of thinner, and stir with a toothpick. What's in that bottle will last an eternity. Insert the tip into the threads and squeeze gently til a small drop comes out and it will sink in deep into the threads before drying. Lots is not needed, so don't get carried away. I begin with a small drop on the shank and finish with some on my threads and they don't come apart. There you have it from my point of view.