Description
The Arrow AM21-LB is a heavy-duty mortise lock body designed for commercial and institutional doors requiring robust security and reliability. Built with heavy gauge steel construction and zinc dichromate finish, this field-reversible lock suits standard 1-3/4" doors and accommodates both flat and beveled door edges. Ideal for facilities managers and contractors who need durable, keying-flexible hardware.
The AM21-LB installs in doors with a 2-3/4" backset and works with wrought brass, bronze, or stainless steel faceplates and strikes. It supports master keying, construction master keying, visual and concealed key control, and interchangeable cores (Pointe, Choice, Plus, Flex bases). As an authorized Arrow dealer, E.D. Locks provides expert configuration guidance and five-year warranty coverage. Contact sales@edlocks.com or 1-877-207-6067 for keying and specification assistance.
Specifications
- Lockcase: Heavy gauge steel, zinc dichromate finish, 5-7/8" x 4" x 15/16"
- Door thickness: 1-3/4" standard
- Backset: 2-3/4"
- Latchbolt: Stainless steel, 2-piece mechanical, 5/8" x 1" x 3/4" throw
- Auxiliary latchbolt: 9/16" effective throw, 3/8" deadlocking
- Deadbolt: One-piece stainless steel, 19/32" x 1-1/4" x 1" throw
- Armored front: Heavy gauge steel, 8" x 1-1/4" x 3/32"
- Hub spacing: 3-5/8" (hub to cylinder), 2-7/16" (hub to turnpiece)
- Strike: Wrought brass, bronze, or stainless steel, 4-7/8" x 1-1/4", 1-1/8" lip to center
- Keying: Two nickel silver keys standard; master keying, construction master keying, visual/concealed key control, interchangeable core compatible
- Field reversible: Re-handable without disassembly
- Warranty: Five-year limited
