are all schlage keyways restricted?

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Part number 80-037 is the combinated Schlage Everest small format interchangeable core and is available in the restricted Everest B Family keyways. Part number 80-036 is an uncombinated version.
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-Primus l...
Split key systems are delivered in the highest level section on the key tip (insert): L - obverse or classic Y - reverse 0000 - Paracentric ZZZZ - Quad D000 - restricted Everest C000 - open...
Falcon D series deadbolts will not accept Schlage Key-in-lever cylinders. The faceplate plug hole is smaller in diameter than the Schlage plug and does not fit flush when i...
For a Schlage "C"  keyway:  Specify "CP6" as the cylinder suffix when ordering  D100 or D200 locks (All other Schlage keyways are not available).
Schlage Everest B keyways are restricted SFIC keyways.
The 40-100 is a multiple tailpiece pack with a pre-assembled, 0-bitted, key-in-knob cylinder.  The kit includes the following: (1) Pre-assembled cylinder 0-bitted, less tailpiece 40-100 (...
The pack is available in all keyways, Everest and Classic families including restricted keyways except Primus. 
A PO from a distributor with a letter of authorization from the end user.
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...