HALF KEY CONSTRUCTION KEYING

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With split key construction keying there are two ways the construction insert is retained in the cylinder so that it won't fall out the back end of the plug, see Figure 1.  The&nb...
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.
The Schlage full size construction control key part number is 48-056-ICX.  The ICX suffix will change depending on if the key is for a new job or existing job.   New jobs: Specify "ICX"  E...
All lock cylinders on a specific project are operable by a special "project key".  Duplicates of this key may be assigned by the building contractor to workmen and subcontractors as required. ...
Falcon Standard Bitting Specs - 018 system Falcon Restricted Bitting Specs - 025 system