About this item
The Schlage A53 is a Grade 2 cylindrical entrance knob lock in the Orbit (ORB) knob design and 612 Satin Bronze finish. The entrance function means the outside knob requires a key to retract the latch, while the inside knob is always free for immediate egress. That's the function used on commercial entry doors, hotel rooms, office suites, and exterior residential doors where key-controlled outside access is required and unrestricted inside egress is mandatory.
The A Series is Schlage's original cylindrical lock, introduced in 1925 and still the most widely specified Grade 2 knob lock in commercial and residential construction. It's an Allegion manufactured product. American Locksets is an authorized Schlage dealer.
What 612 Satin Bronze Means and Why It Matters
Finish code 612 is Schlage's designation for Satin Bronze, also referenced as US10 in BHMA finish notation. It's a warm, muted bronze tone that pairs well with bronze and oil-rubbed hardware throughout a building. The Orbit (ORB) knob design is a smooth, rounded form that's compatible across the full A Series function line, so matching the entrance knob to other Orbit functions like passage, privacy, and classroom on the same project is straightforward.
The 612 finish is applied directly to the base material, so it resists wear and fading better than painted finishes on competing products at this price point.
Grade 2 Certification: What It Covers
The Schlage A Series exceeds ANSI/BHMA Grade 2 requirements across five test categories: Cycle Tests, Impact Tests, Resistance Tests, Strength Tests, and Warped Door Tests. Grade 2 is the correct specification for medium-traffic commercial applications and heavy-duty residential use. It covers office buildings, hotels, multi-family housing, light retail, and institutional facilities that don't require the cycle endurance of a Grade 1 institutional lock.
The A53 carries a UL/cUL listing for A-label single fire doors up to 4 feet by 8 feet. The UL symbol and letter F are stamped on the latch front for field verification. Fire rated: Yes. The lock is also California Referenced Standards Code compliant.
Physical Specifications
Function: Entrance (A53). Knob style: Orbit (ORB). Finish: 612 Satin Bronze (US10). Handing: Non-handed, works on left-hand and right-hand doors without modification.
Door thickness: 1-3/8" to 1-7/8". Cylinder: Conventional 6-pin, C Keyway standard. Latch: Spring latch, 1" by 2-1/4". Strike: T-Strike, 1-1/8" by 2-3/4". Latch bolt front indicates UL listing. Less cylinder (LD) and FSIC prep options are available for interchangeable core systems if your project uses a master key program.
The A53 ships with a conventional cylinder and two keys standard.
A Series Orbit Knob Design Context
The Orbit style is a rounded ball-shaped knob that's been part of the A Series since the line's early years. It's available across all A Series functions including passage (A10S), privacy (A40S), classroom (A70), storeroom (A80), and faculty restroom (A85), so specifying Orbit across a multi-function project keeps the hardware consistent throughout. All Orbit variants in the 612 Satin Bronze finish share the same visual weight and tone.
Warranty and Sourcing
The Schlage A53 ORB 612 carries a 3-year limited warranty. Country of origin: Mexico. American Locksets is an authorized Schlage dealer and has supplied commercial door hardware since 2001.
Trusted Since 2001
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