If you are searching for a way to keep your hubcaps safe, then you may need wheel locks.
For the 2000 Ford Focus - as well as numerous productions of the Escape and Fusion - you can purchase a set of zinc-plated lugs. These hidden nuts provide protection against theft. There are four in a set, and you only need to replace one lug nut on each wheel in order for them to work. A key is also included for easy removal.