[JBo]

These spinners are designer to be wacked with a lead hammer. They will get marred and flattened etc. I'm not sure what coating would stop it, but there must be something. Do not grease the threads, instead clean both the hub and the spinner grooves and put "no seize' or "anti seize" on both parts. Graese will attract a certain amount of contaminents and add to the problem. A tool that fits with a torque wrench would be great to install, but usless to take off with (can't use a torque wrench for off). But by all means safety wire the spinners...I've had one come off 30 years ago and it was only luck that saved the car.