i think i posted this on this site before butt it may help to do it again
MASTER LOCK makes most all of their products so you can get them KEYED ALIKE
i buy them by the box(knot cheap butt it is really convenient to have several around)
once you have several locks that only knead one key to open you will kick youseff for knot doing it sooner
for my RV's, boat, utility & cargo trailers i use a medium length lock that goes thru the hole in the hitch lever
https://lh3.googleusercontent.com/1mATD ... 78-h640-noworst case scenario will be if you have to waller the hole out a smidge w/ a drill(about 30 seconds worth)
on the receiver hitch pin MASTER's smaller lock w/ a longer bale works well
https://lh3.googleusercontent.com/hJ7F4 ... 78-h640-nobarn/garage doors, gates, hitches....... ALL ONE KEY
like i said above it is a bit costly going in butt in the long run most of your personal property security issues are solved quite inexpensively
sw