This key can presumably be used in any door. However, based on artwork for the unaired Hulu/Fox series, the live-action Bitey Key would have had its own door.
Guide to the Known Keys entry
- Concept and production artwork by David Blass and Vincent Proce implies that the Bitey Key would've been used in the Hulu/Fox "Locke & Key" series had it come into fruition.
- Locke & Key: Grindhouse. August 29, 2012
- Locke & Key: Guide to the Known Keys. November 23, 2011
- Blass's Portfolio Page on the unaired Hulu/Fox Pilot.