1>mortice hardened lock 2>entrance/privacy/passage/dummy 3>normal/computer key 4>backset 45-60mm 5>finish: PB/SB/AB/AC/SN High quality Euro standard zinc alloy satin nickel and bright nickel finish middle plate reversible mortice hardened lockProduct Information High quality Euro standard zinc alloy satin nickel and bright nickel finish middle plate reversible mortice hardened ...