Cal-Royal NM8010 Series, Extra Heavy Duty Mortise Locks, Grade 1 - ESCUTCHEON TRIM PASSAGE Function F01, Left-Hand (CE-TE) Hollon The Captive Key functions as

The Captive Key functions as a hybrid of a Single Cylinder and Double Cylinder Deadbolt

No ordinary key management system

20" diameter Solid Steel Live Locking Bolts

What's unique about this safe is that it's invisible

They are available with or without a Shackle Guard for extra protection

Cal-Royal NM8010 Series, Extra Heavy Duty Mortise Locks, Grade 1 - ESCUTCHEON TRIM PASSAGE Function F01, Left-Hand (CE-TE) Hollon The Captive Key functions asPassage Function: Latch bolt operated by lever from either side at all times. Inside lever is always free for immediate exit. Any door in commercial or institutional buildings where the best auxiliary Mortise deadbolt locks are required Backset: 2 ( 70 mm ) Door Range: 1 ( 44 mm ), available to 2 (57 mm ). Specify thickness if other than 1 Deadbolt: 1 ( 25 mm ) throw, stainless steel, can withstand cutting or sawing Cylinder: 1 Mortise cylinder