Brake rotor jack screws are necessary to ensure proper contact between the brake pads and the rotor. The correct gap between the pads and rotor ensures that the brakes work properly and that there is no unnecessary wear on the pads or rotors.
Jacking screws can also be used to compensate for wear and tear on the brake pads and rotors. As the pads and rotors wear down, the gap between them will increase. Adjusting the jacking screws can help to maintain the correct gap and prevent the brakes from losing effectiveness.
In some cases, brake rotor jack screws may also be used to adjust the angle of the brake pads. This can be necessary to prevent the pads from making noise or creating vibrations when the brakes are applied.
