Nail polish, RTV, liquid rubber, paint, Ca glue, Teflon thread tape, lock washer, second nut, safety wire, tabbed washer, the one with a tab you bend up against the bolt, and on a lot more times then I can think of, nothing at all. All depends on what I am doing. I have flown for years on a plane and never had anything holding the engine bolts, just tightened them and flew. Other I had them come loose with loctite and lnyloc nuts.



Dru.