Quote:
Originally Posted by Larry1013
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If you consider doing this, don't forget that the "M" (master) key will only work the upper lockset. It will not operate the deadbolt. None of the FIC or Global locks will work both locks with the master. So, if you want to be able to lock/unlock both locks on the entry door, you'll need a key with the specific number that's reflected inside the lock, usually on the inside of the interior pull handle "faceplate".