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Cylindrical Lever Locks
National Lock Supply offers a full line of Grade 1 and Grade 2 cylindrical levers from a variety of manufacturers and price points. We have a wide selection of functions and finishes to match architectural and decorative requirements.
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Frequently Asked Questions
What is a cylindrical lever lock?
A cylindrical lever lock is a mechanical lock installed through a 2-1/8″ face bore and 1″ latch bore. At National Lock Supply, we carry Grade 1 and 2 lever locks that combine ADA accessibility with durability, making them more robust than tubular locks.
What door prep is required?
Most fit 1-3/8″ to 1-3/4″ doors with backsets of 2-3/8″ or 2-3/4″. Some commercial versions support 5″ backsets, offering flexibility for retrofits.
What ANSI functions are available?
Passage (F75): no locking.
Entry (F82): keyed outside, free inside.
Classroom (F84): keyed control.
Storeroom (F86): always locked outside, key required.
Privacy/Hotel (F90/F93): inside privacy, emergency override.
What grades are offered?
Grade 1: heavy-duty commercial.
Grade 2: light commercial/premium residential.
Grade 3: residential only.
Are lever locks ADA compliant?
Yes. Lever handles require no twisting, meeting ADA/ICC standards unlike knob locks.
Where are cylindrical lever locks used?
They are common in schools, offices, healthcare facilities, hotels, and apartments, where frequent use requires stronger locks than tubular designs.
How do lever locks compare to mortise locks?
Lever locks are easier and faster to install but less versatile than mortise locks, which offer more functions and strength.
What finishes are available?
Satin Chrome (26D), Oil-Rubbed Bronze (10B), Bright Brass (03), and Matte Black are standard, matching other door hardware.
Can lever locks be keyed to match other locks?
Yes. Most use SC1 or KW1 keyways, with options for interchangeable cores to fit into master key systems.
Why choose National Lock Supply for lever locks?
We supply ANSI/BHMA certified lever locks in every function and finish, with expert guidance to ensure ADA compliance and long-term durability.