Normally the excess torque might lead to the lugs breaking.
These trailer wheels need to be torqued properly due to the design of the center of the wheel.
The lugs are located in an area that is dished slightly so that the nuts will deform the steel in that area and make a more secure mounting. They will hold torque better than a flat wheel.
The wheels are either painted or powder coated and until this coating is either worn off or compressed the wheels need to be retorqued often.
If a new wheel is installed this is of particular importance.
The wheel and hub should be cleaned at the mating surfaces and the nuts and lugs NOT lubricated.
After the wheel mating surface and the cones where the nuts fir into the wheel have been scoured of paint
the lugnuts will hold torque.
Until that occurs the wheels need to be checked. Best is to use a click stop torque wrench and back off the nut a little so that you can turn the nut until it clicks. If you check it by just pulling on a tight nut it will click alright, but the torque may not be correct since the torque is a dynamic thing.