I'm not convinced that these would work as you describe. When there is less-than-perfect fitup between two pieces, torque can change without the nut or bolt moving. This is why it's recommended to re-check torque on a car's lug nuts after 50 miles of driving (or 10 hours of use for a tractor) every time the wheel is removed. This is also why it's recommended to check the loader frame bolts every ten hours for the first 50 hours, or something like that. The bolts are properly torqued from the factory, and on my tractor they had paint marks to indicate whether they had moved. For whatever reason, the two pieces of metal "settled in" relative to each other and some of the bolts became loose even though the paint marks showed that they hadn't moved.
I could potentially see these being useful if they were installed after it was confirmed that the bolts had fully 'settled in"--that is, after several scheduled torque checks revealed no change.