This is a Schlage Style Cylinder with aYale Y1/999 keyway designed to fit most key-in-knob and key-in-lever cylinders and some deadbolts. The lock is 0-bitted 6 pin cylinder with all Number 0 bottom pins and 2 uncutYale Look-Alike keys and six tailpieces. Easily repin the lock and duplicate the keys to match to an existing cut key. NOTE: This is not a Yale cylinder. Uses 999A/Y2 6 pin key. Satin Chrome finish.