which keyways are restricted?

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Schlage Everest B keyways are restricted SFIC keyways.
A PO from a distributor with a letter of authorization from the end user.
HIGH SECURITY Primus/Primus XP: In addition to six cuts for standard locking mechanism, there are five side finger pins to operate the secondary sidebar lock. Primus keys will operate non-Pri...
Schlage Everest 29 is a new keyway family that launched in August 2012 and is patented until 2029. It offers the highest level of restricted key system security by Schlage through patent protection...
All of the Everest D sections/keyways are restricted.