Magnetic keys, bow caps and key components are described. In one aspect, the present application describes a key. The key includes a blade and a bow connected to the blade. The bow is for applying torque to the blade. The bow defines a key ring aperture located near a top of the bow. The top is the portion of the bow furthest from the blade. The key also include a magnet fixedly coupled to the bow by placement within the key ring aperture to provide a magnetic field on at least one side of the key.