Safe to use Wheel Adapters 5 on 4" to 4.5"?

i made these and threaded the axles stud holes to 1/2-20 and mounted them with counter sunk headed fasteners . these never had issues front or rear , and i made then in both gm and mopar bolt patterns . and 1/2-20 counter sunk headed fasteners . to mount the rims too as well . DSC07826.JPG DSC07827.JPG DSC07828.JPG DSC07829.JPG