core key not working

RELATED FAQS

Question
Answer
The lever may be missing the slot feature for the core locking lug.  Verify slot is in place.
A zero bitted Falcon SFIC core is combinated for the control key to be cut at all 4's.
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.
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...
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 =...
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.
All of the Everest D sections/keyways are restricted.