A:Answer Yes, if you have the magnetic mount. The two camera kit comes with with magnetic mount and one screw mount. If you want both on a magnet then you will need to purchase a second magnetic mount.
The magnetic mount, however, uses a screw to install the magnetic part into a wall or surface. So if your question is more about setting a mount then as far as i know there is no mount that doesnt use a screw to set it in place.