Originally Posted by td5771
clean the threads dry with some solvent on a q tip. when they are completely dry use the red loctite (yes the permanent one--it isn't) make it snug and leave it over night to dry. worked for me. not on a auger gearbox but a gear box
red locktite also know as stud and main will work fine. It can be difficult to remove at a later date.
The easiest and safest way to remove the plug in the future is the heat the the plug with a torch, it doesn't need to be real hot. This will loosen the locktit and make it easy to remove.
The other thing you can try is some teflon tape on the threads. It will increase the diameter of the plug some and hopefully keep it tight enough that it won't walk out. This method would make it easy to remove in the future.