6-pin Schlage C compatible cylinder is standard , Advanced Cylinder Technology employs an innovative patent pending pin design which has been specially engineered to resist bumping attacks , Unlike standard pins, it does not react to impact from a bump key and bump tool , Available in a total of 24 keyways , Cylindrical lock housing , Latch bolt: Stainless steel , Deadbolt ? Brass with hardened steel roll pin SKU: ORSNO49615