We all know that installing roof top tents is not a fun job, so let's just get that out the way! If you have already installed it, and simply swapping out bent plates for our mounts, you will be able to do that much quicker. If you are lifting the tent or installing it for the first time, we would highly suggest using 2-3 people as they are very big and heavy.
We designed our mounts to have a 0.100" gap in-between the top of your tubing and the top of our mount. This allows for some compression, as well as difference tolerances of powder coating and tubing thicknesses. The most important thing to note when installing these is to create an equal gap. The mounts won't work as efficiently if they become cockeyed. You want to start with one bolt (using a 1/2" socket wrench or box wrench), and equally snug them up taking turns until there no less than 0.080" gap. Beyond that, you may bend the mounts and possibly bottom them out.
If you are using the black security caps, they will screw onto the end of the exposed thread of the bolts. Snug them up using your fingers, then use a small allen wrench (about 1/8" size) into one of the three holes and crank it down further. For extra security, we suggest adding super glue into the threaded part of the cap to ensure they don't come undo, and also to make it harder for a thief to steal.
After a test drive or two, ensure they are still snug. And as always, before any long trips, go ahead and check them again as well.