What is the best commercial mortise lock?

The Schlage L9000 is the most widely specified. The Sargent 8200 has the highest cycle count at 14M+. The Corbin Russwin ML2000 is heavily specified on government projects. All are ANSI/BHMA Grade 1.

What is the difference between Grade 1 and Grade 2 locks?

Grade 1 locks are tested to 1,000,000+ cycles with higher impact resistance. Grade 2 are rated for 250,000 cycles. Grade 1 is standard for commercial exterior doors and high-traffic areas.

What is the best door lock for school classrooms?

The Schlage ND78 classroom security lock allows locking from inside without opening the door, meets ADA requirements, and maintains fire egress compliance.

What is the difference between Schlage ND and ALX?

ND is Grade 1 with 1M+ cycles and electrified options. ALX is Grade 2 with 250K cycles and modular chassis at lower cost. They share the same lever designs.

What is the most common commercial door closer?

The LCN 4040XP is the most widely specified surface-mounted commercial door closer in the US, covering sizes 1-6 and all three mounting types.

What locks are used in hospitals?

Grade 1 mortise locks on high-traffic doors, cylindrical locks on patient rooms, electronic access with audit trails on pharmacy and restricted areas.

How much cheaper is wholesale vs retail door hardware?

Wholesale pricing on commercial door hardware is typically 20-40% below manufacturer list price. Project quotes for large orders can be even lower.

Olympus 600DW US4 1-3/8 KA

Descriptions

Grade 1 Drawer Deadbolt Lock, Fits 1-3/8", Keyed Alike, Satin Brass Finish The Olympus R Series uses the CCL R1 keyway (5-pin, with 6-pin keying available) and all R Series locks key together. This series includes the 500DR/500B door deadbolt lock, 600DW/600B drawer deadbolt lock, 400SD sliding door push lock, 429R showcase/ratchet lock, DCR cam lock, R078 diamond back drawer lock, 997 door latch lock, and 996 drawer latch lock. Most models are ANSI/BHMA A156.11 Grade 1 rated and Woodwork Institute (WI) acknowledged. Stock keyed alike numbers include 4T21579 and 4T37526. MRI Series (500M/600M) models with non-ferrous, non-magnetic materials are available for medical applications including MRI suites. Available finishes include 26D, US4, and 10B.