Installed these on my boat to replace worn out or broken stock ones. Easy to install but bear in mind, if your current lock holes aren't completely round, you may have to do some filing to make these work. My holes had the two flat sides for the stock locks to fit in and not turn so I had to use a Dremel to round the holes out. No big deal, just added a little time and effort to the installation. I ordered 6 of these and the keys are all alike which I was glad since I'd rather not have to go through 6 keys to get the right one but it would also mean if someone else has the same locks, their key might likely fit yours. I did not order them keyed alike, that's just the way they came. The factory may make them in different keys or maybe they make a certain number with the same key, I don't know, just be aware of this. They work great!