Von Duprin 6400 Modular Electric Strike for Mortise or Cylindrical Devices Fail Secure Satin Stainless Adjustable 12 24VDC 12 24VAC Daewoo 4700 (discontinued) 4700 (discontinued) All i Qwik Line Locksets feature the "CableGard" to protect the wiring going through the door no release) Face plate length Standard 4 7 8" faceplates (one each for offset and centerline locks) Backbox depth 1 3 4" backbox depth Fail Safe Fail Secure Fail Secure Only Voltage Field selectable 12 or 24 VDC and 12 or 24 VAC voltage Handing Non Handed Lockset Types Modular design fits cylindrical and nearly any mortise lock Vertical adjustments allow for alignment with a wide More Information Below