Yoda4561
Flashlight Enthusiast
Is electrical contact through the threads necessary, or is the bottom of the tube enough? As others have mentioned, Ti galls, Ti-Ti contact is the worst as the material will practically weld to itself. When you twist the threads it'll just end up tearing itself apart like in the photo. The only real solution is to eliminate the contact either with some kind of anti-seize, or by coating the threads with a graphite/moly/hBN coating (cerakote, gunkote, molyresin, graphite paint from tractor supply). No I haven't tried this on Ti, if they make that model in a warm or neutral white I might try it myself, but I won't spend money on cool white.
One low cost potential solution in regards to lubrication, Permatex Ceramic Extreme Brake Lubricant. It's the smoothest stuff I've ever put on flashlight threads, stays in one place, and doesn't seem to blacken up with wear materials as quickly as most others. It's also like 2 dollars at an auto parts store for a couple squeeze packs that have enough grease for dozens if not hundreds of applications on a small flashlight.
One low cost potential solution in regards to lubrication, Permatex Ceramic Extreme Brake Lubricant. It's the smoothest stuff I've ever put on flashlight threads, stays in one place, and doesn't seem to blacken up with wear materials as quickly as most others. It's also like 2 dollars at an auto parts store for a couple squeeze packs that have enough grease for dozens if not hundreds of applications on a small flashlight.