Key Override: Accepts Maximum Security (MS) mortise cylinders; can be used to override the lock combination and gain access using a key. Allows facilities to initiate or maintain a master-keyed security system (keyed alike or keyed differently).
Latch: Purchased separately (Adams Rite)
Stile Width: 1⅞" (48 mm) minimum, required for mounting
Door Thickness: 1¾" (44 mm) maximum
Strike: Sold separately (Adams Rite or Kaba Ilco Corp.)