To solve the lock from rusting up, I found that a prescription bottle fits over o-ring to keep the elements out! Has kept the lock trouble free for several years now! Way better than the little cover that comes with the locking pin. Found an o-ring the fit in cover groove that provided a good seal in bottle. Always have a spare laying around since I've also drilled holes in scrap wood to organize diver bit or small screws etc... 1 1/4 fostner bit works well with standard size bottle. Hope this helps keep the looks working!