[ThePair]

I put one on the front and back hatches, I'm very happy with them.

When I ordered, I only recall 2 sizes, not 4. I think 7/8 sounds right, I probably have it in a post someplace.

I tend to lock spare keys to the camper and the van in the front hatch, on a hook. This way, I can't ever be locked out of either while I'm camping. It also means that I can go for a walk, hike, drive, whatever, and not have to carry any keys with me, if I choose to lock up. I don't always, depending on what I'm doing and how long I think I'm going to be gone, but this gives me peace of mind. Plus, it means I never have to search for that little key to open up the hatches.

I also added some hatch-holders, which are very helpful especially on the front, since that one always closes.