Mounting Highlift Jack Under Tray

Best thing is to put a 12mm stud mounted to the vehicle through a hole in the jack and use a smallish padlock to secure it.

Everything we fit on the outside to any of our trailers or vehicles we always padlock them.

Two reasons, to stop someone wanting more than me and as a safety restraint just in case we forget to secure it correctly or it comes loose.

I like the stud idea too, as it reduces the risk of one losing "stuff". Have seen this idea on spare tyre mounts as well.

With the advent of battery powered angle grinders, and those thin disks, nothing is safe anymore. We had a young bloke work for us some years back, and he a had a big tool box in the back of his ute, with 2 padlocks. These padlocks were encased in home made "fittings" that totally enclosed the padlock, except for the end where the key went, and the upper/inner side where the clasp fitted to the toolbox.

Don't know if I've described it well, but I thought it was a great idea, and further increased the delay needed to rat one's gear by some lowlife.

Bob.

Maybe use lock nuts that are used on spot lights.
Plenty on flea bay, won't stop a determined thief, but will delay them.