IC core missing control key

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A control key is required to install or remove an interchangeable core from a housing or lever. The control key is identified by having "CONTROL" stamped on the bow. How to install and remove an i...
For all Schlage and Falcon small format interchangeable cores shipped from the factory 0-bitted, the control key will be cut to all 4's.
A zero bitted Falcon SFIC core is combinated for the control key to be cut at all 4's.
The lever may be missing the slot feature for the core locking lug.  Verify slot is in place.
Choose the appropriate full size control key from the selection below.
Classic Conventional Key Blanks and Cut Keys Part Number Description Key Blanks 35-056 Control Standard bow, embossed both sides 35-076 Standard bow, unembossed both s...
Uncombinated cores are furnished less keys, pins and springs.  Ordering the 80-036 will get you an empty core so you can key it.
There are two parts that can be referred to as control pins for a 23-030 (FSIC core).C603-967 is the lower control pin that sits in the seventh hole of the FSIC plug. (part B in exploded view) ...
A lock specified by a cylinder suffix BDC will be supplied with a disposable small format construction core, see Figure 1 below.  There is no metal key but instead the BDC cylinder has a ...
A small format disposable core is used as a SFIC construction core that is for low security applications and can be thrown in the waste bin after use.
Schlage only offers a limited number of keyways that match the BEST sections. Available in keys and cores.Specify keyway using the B suffix: AB = A, BB=B, CB=C, DB = D, DDB=DD, EB = E, FB = F, GB =...
All of the Everest D sections/keyways are restricted.
Conventional Cylinders - A conventional cylinder is one that requires some breakdown of the lock in order to be removed. These are the most commonly used cylinders sometimes called key-in-lever...
No, cores, especially master keyed cores, have to be ordered from Schlage or Falcon cylinders  via their master key system.