You'd be burying the back end of your tow vehicle in the water before the salt would reach the lock, so shouldn't be a problem. Mine had a rubber cap over the lock for protection and held up just fine until I lost the keys and had to cut the thing of with an angle grinder.I saw those locking pins and i was kinda worried about salt maybe seizing it .. do they hold up . i like that full lock down probably won't
be taking on and off all the time anyways ...
Did the lock at the end fail or the pin itself?
If you leave your hitch on more permanently wouldn't a grade 8 bolt with lock nut on it work best? or a stainless steel bolt?
You'd be burying the back end of your tow vehicle in the water before the salt would reach the lock, so shouldn't be a problem. Mine had a rubber cap over the lock for protection and held up just fine until I lost the keys and had to cut the thing of with an angle grinder.