BM20-LB Arrow Lock Mortise Lock

• Finish:
• Series: BM Series Mortise Locks
• Type: Locks, Cylinders, Cores, Keyblanks
• Sub Type: Mortise Lock

Lock Body, BM20

The BM Series are engineered for strength and performance, and precisely manufactured to exact standards.

Arrow BM Series Lever Mortise Locks are intended for heavy duty use in schools, hospitals and commercial buildings where security, durability and low maintenance are required.

• Handing: Handed; field reversible. The lockset can be re-handed without disassembling the lock case.
• Door Thickness: 1-3/4" (4mm) standard. Optional door thickness available; consult factory.
• Backset: 2-3/4" (70mm).
• Lockcase: Heavy gauge steel, with zinc dichromate finish for corrosion resistance. 5-7/8" (149mm) x 4" (102mm) x 15/16" (24mm).
• Armored Front: Heavy gauge steel, 8" (203 mm) x 1-1/4" (32mm) x 3/32" (2mm). Accommodates flat doors and doors beveled 1/8" (3mm) in 2" (51mm).
• Faceplate: Wrought brass or bronze, attached by machine screws to lockcase front.
• Latchbolt: Stainless steel, 2 piece mechanical with anti-friction insert. 5/8" (16mm) x 1" (25mm) x 3/4" (19mm) throw.
• Auxiliary Latchbolt: 9/16" (14mm) effective throw and 3/8" (10mm) effective auxiliary latch deadlocking.
• Deadbolt: One-piece stainless steel, 19/32" (15mm) x 1 1/4" (32mm) x 1" (25mm) throw.
• Hub: Lever: nickel steel, 5/16" (8mm).
• Spacing: Center to center, hub to cylinder: 3-5/8" (92mm).
• Center to center, hub to turnpiece: 2-7/16" (62 mm).
• Strike: Wrought brass or bronze, ANSI straight lip standard, 4-7/8" (124mm) x 1-1/4" (32mm) 1-1/8" (29mm) lip to center. Optional strikes, lip lengths and ANSI wrought strike box available.
• Keys: Two nickel silver standard.
• Keying Features Available:
  • Master keying
  • Construction master keying
  • Visual key control
  • Concealed key control
  • High security cylinder
  • Interchangeable core (IC) - Pointe, Pointe Flex
• Warranty: Five-year limited.