Marks USA 110N Passage Cylindr...
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$91.46
Marks USA Marks USA 110N Passage Knob Lockset - Grade 2, Round Knob 110N-32D-E4

Marks USA 110N Passage Cylindrical Knobset — Grade 2, Round Knob, Satin Stainless Steel

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Model: 110N-32D-E4

In Stock (leaves warehouse same day if ordered before 3pm ET)

$174.84
$91.46
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Marks USA 110N Passage Cylindrical Knobset — Grade 2, Round Knob, Satin Stainless Steel

The Marks USA 110N is a BHMA-certified Grade 2 cylindrical passage knobset engineered for commercial door applications requiring reliable, unimpeded access. Featuring a 2-3/8" backset and a 2-1/4" diameter round knob, this lockset is designed for doors with a thickness range of 1-5/8" to 1-7/8" and carries an ANSI-A156.2 Grade 2 Plus 3-Hour Fire Rating. The latch is retracted by the knobs at all times (ANSI Function F75), making it ideal for passage, hall, and closet applications where no keying is required. Finished in Satin Stainless Steel for a clean, professional appearance suited to demanding commercial environments.

Key Features

  • Backset & Latch Dimensions: Standard 2-3/8" backset with Latch #1138 featuring a 1" x 2-1/4" front, 1/2" throw, and a stainless steel nose for smooth, durable operation.
  • Round Knob Design: 2-1/4" diameter (110 Series) round knob provides a comfortable, professional grip suited for high-traffic commercial doors.
  • Steel-Reinforced Roses: Adjustable roses on both sides with steel reinforcement and a 2-3/4" diameter for added strength and a finished appearance.
  • Included Strike: Comes with Strike #1136, a 2-3/4" "T" Strike (T-Strike, 1-1/8" x 2-3/4", 1-1/8" lip, square corner) for secure latch engagement.
  • Door Thickness Compatibility: Accommodates door thicknesses from 1-5/8" to 1-7/8" for versatile installation across a range of commercial door types.
  • Fire-Rated Construction: Meets ANSI-A156.2 Grade 2 Plus 3-Hour Fire Rating, supporting compliance in fire-rated door assemblies.
  • E4 Option Available: Optional E4 configuration provides a 2-3/4" backset with a 1-1/8" x 2-1/4" face for alternate door preparations.
  • Satin Stainless Steel Finish: Durable Satin Stainless Steel finish delivers lasting corrosion resistance and a professional aesthetic for commercial interiors.

Certifications & Compliance

  • BHMA Certified
  • ANSI/BHMA A156.2 Grade 2
  • 3-Hour Fire Rating (ANSI-A156.2 Grade 2 Plus)
  • UL Listed

Technical Specifications

  • Product Group: Mechanical Locks
  • Product Subgroup: Bored Locksets
  • Product Type: Cylindrical Locks
  • Subcategory: Cylindrical Locks
  • ANSI/BHMA: ANSI/BHMA, UL Listed
  • Commercial/Residential: Commercial
  • Function Description: Latch retracted by knobs/levers at all times
  • Series: 110 Series
  • Keyed: No
  • ANSI Function: F75
  • Product Attribute: Cylindrical Locks
  • Product Function: Passage/Hall/Closet
  • Strike Classification: T-Strike, 1-1/8" x 2-3/4", 1-1/8" Lip, Square Corner
  • Product Category: Mechanical Locks
  • Department: Door Hardware

Typical Applications

  • Commercial Office Buildings — Passage and interior corridor doors
  • Educational Facilities — Classroom hallways and closet doors
  • Healthcare Institutions — Interior passage doors requiring unimpeded access
  • Retail Establishments — Stockroom and back-of-house passage doors
  • Multi-Tenant Residential Properties — Common area and hallway doors
  • Government and Municipal Buildings — Interior passage and utility doors
  • Industrial and Warehouse Facilities — Interior access and storage room doors

Why Marks USA 110N?

Marks USA 110N cylindrical knobsets deliver professional-grade reliability with steel-reinforced roses, a stainless steel latch nose, and BHMA-certified construction rated to ANSI-A156.2 Grade 2 Plus 3-Hour Fire Rating. Engineered for demanding commercial applications, the 110N combines durable Satin Stainless Steel finish with a proven passage function design trusted across offices, healthcare facilities, educational institutions, and more.

Manufacturer Resources

Marks USA Product Catalog

Product Specs

Latch Throw:
1/2"
Grade:
Grade 2
Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Product Type:
Cylindrical Locks
Subcategory:
Cylindrical Locks
ANSI/BHMA:
ANSI/BHMA, UL Listed
Commercial/Residential:
Commercial
Lock Type:
Cylindrical
Function Description:
Latch retracted by knobs/levers at all times
Series:
110 Series
Front Size:
1-1/8” x 2-1/4”
Keyed:
No
ANSI Function:
F75
Product Attribute:
Cylindrical Locks
Product Function:
Passage/Hall/Closet
Strike Classification:
T-Strike, 1-1/8" x 2-3/4", 1-1/8" Lip, Square Corner
Product Category:
Mechanical Locks
Backset (Distance):
2-3/4"
Department:
Door Hardware

Marks USA 110N-32D-E4 – Frequently Asked Questions

1) What door thickness will a Marks USA 110N knob lockset fit?
Doors from 1-5/8 to 1-7/8 inches. That covers the 1-3/4 inch commercial door you will find on most openings, but it does not reach down to a 1-3/8 inch residential interior door. For a thinner leaf, the Cal-Royal CAL30 passage lockset covers 1-3/8 to 2 inches, and the Orca OCL210 is the other non-keyed passage cylindrical option.
2) Can I use the Marks USA 110N on a fire-rated door?
Yes. The 110N carries a 3-hour fire rating under ANSI-A156.2 Grade 2 Plus and is UL Listed, so it can go on a labeled opening up to a 3-hour assembly. Worth knowing for a passage application: the latch is retracted by the knobs at all times and there is no locking, so the lock itself contributes no positive latching beyond the spring latch engaging the strike.
3) Is the Marks USA 110N keyed, and what does ANSI function F75 actually do?
No keying, no cylinder, no thumbturn. F75 is the passage function: both knobs turn free at all times and the latch retracts from either side, so the door never locks. That is what you want on a corridor, a closet, or a stockroom door. If the room needs to be secured from the inside, look at a privacy function such as the Orca OCL240, and for a keyed opening the Orca OCL250 entrance lockset.
4) Will the Marks USA 110N latch into the strike already in my frame?
It depends on what the frame is prepped for. The 110N ships with a T-strike measuring 1-1/8 x 2-3/4 inches with a 1-1/8 inch lip and square corners, and the latch has a 1/2 inch throw. If your frame is cut for that same T-strike footprint, it drops in and you can reuse the prep. If the frame is prepped for a full ANSI strike, 4-7/8 x 1-1/4 inches, the included strike will not fill the cutout and you will need an ANSI strike or a filler plate.
5) What is the closest Grade 1 equivalent to the Marks USA 110N passage knobset?
The Cal-Royal CAL30 Calypso Series is the nearest step up in duty. Both are non-electronic passage locksets with the Passage/Hall/Closet function, so the latch is retracted by the knobs or levers at all times with no keying. The CAL30 is rated Grade 1 extra heavy duty and fits doors from 1-3/8 inch to 2 inch, while the Marks USA 110N is Grade 2 and covers 1-5/8 inch to 1-7/8 inch. If an opening needs a passage lock on a thinner or thicker door than the 110N covers, the CAL30 spans the wider range.
6) What should I use instead of the Marks USA 110N on a bathroom or bedroom door that needs to lock?
The 110N will not do it - its F75 passage function retracts the latch by the knobs at all times with no keying or locking. For a door that needs to secure from the inside, the Orca Hardware OCL240 is a Grade 2 privacy cylindrical lockset in medium duty, and the Cal-Royal CAL20 Calypso Series is a Grade 1 extra heavy duty privacy lock fitting doors 1-3/8 inch to 2 inch.
7) What do I order if the opening needs to be keyed rather than a passage knob?
The Marks USA 110N is non-keyed by design. For a keyed opening in the same cylindrical format, the Orca Hardware OCL250 is a Grade 2 entrance cylindrical lockset in medium duty, and the Dorma C853 is a Grade 1 entry keyed single cylinder lever lockset covering doors from 1-3/8 inch to 2-1/4 inch. Pick the lever version where the facility standardizes on levers.
8) Is a dummy trim the same thing as the Marks USA 110N passage set?
No, and it is the substitution most often made by mistake. The 110N is a working cylindrical lockset with a latch - a 1/2 inch throw latch and a T-strike, 1-1/8 inch x 2-3/4 inch with a 1-1/8 inch lip - so it latches the door shut. A dummy such as the Dorma C501 single dummy trim or the Orca Hardware OCL2170 Grade 2 half dummy lever is surface-mounted pull trim with no latch at all. Use a dummy only on an inactive leaf or a door held closed by other means; use the 110N where the door must latch.
9) I need the passage function but with a lever instead of a knob - what is the equivalent?
The Marks USA 110N uses a 2-1/4 inch diameter round knob. For the same Passage/Hall/Closet function on a lever, the Dorma CL701 CL700 Series is a Grade 2 non-keyed lever lockset with the passage function, and the Cal-Royal CAL30 Calypso Series is the Grade 1 passage lockset for doors 1-3/8 inch to 2 inch. Lever trim is the usual choice where ADA operation is being specified across a facility.
10) Do I need to specify handing for the Marks USA 110N knobset?
No. It is a non-handed passage lockset with the same round knob and rose on both faces and a latch that retracts from either side, so one part number covers left-hand and right-hand openings. There is no latchbolt to reverse and nothing to field-hand.
11) Is a Grade 2 knobset like the Marks USA 110N enough for a high-traffic commercial corridor?
Grade 2 under ANSI/BHMA A156.2 is the commercial-duty tier below Grade 1, and the 110N is built for commercial use with steel-reinforced roses on both sides and a stainless steel latch nose. For an office corridor, a classroom hallway, or a stockroom door it is the normal specification. On an opening taking abuse all day, or where a facility standard calls for Grade 1 across the board, the Cal-Royal CAL30 is the Grade 1 passage cylindrical alternative.
12) I need ADA-compliant lever hardware, not a knob. What should I use instead of the Marks USA 110N?
A round knob is the wrong call for an ADA-governed opening, and the 110N uses a 2-1/4 inch diameter round knob. For a non-keyed passage opening needing a lever, the Dorma CL701 is a Grade 2 non-keyed lever lockset in the passage family, and the Stanley QTL200 Series passage lever comes with the Sierra bent lever on a small rose. Either gives you the lever shape without changing the function.
13) Is there another Grade 2 passage cylindrical lockset besides the Marks USA 110N?
Yes. The Orca Hardware OCL210 is a Grade 2 passage cylindrical lockset rated medium duty, with the same Passage/Hall/Closet function as the Marks USA 110N. Both are non-keyed cylindrical locks. The Marks USA 110N carries a 3-hour fire rating under ANSI-A156.2 Grade 2 Plus and is UL listed, so for an opening in a fire-rated assembly the 110N is the one that documents that rating.
14) Can a keyless pushbutton lock replace the Marks USA 110N on a passage door?
The Lockey 2830 is a mechanical pushbutton keyless knob lock with an auto-locking passage function, fitting doors from 1-1/8 inch to 2 inch, and the Lockey 1600 is a heavy duty mechanical keyless knob lock with an adjustable backset over that same 1-1/8 inch to 2 inch range. Both add code-based control that the 110N does not have, since the 110N is non-keyed and retracts the latch by the knobs at all times. The 110N is fixed at a 2-3/8 inch backset with an E4 option for 2-3/4 inch, so where the door prep is already bored to a nonstandard backset the adjustable Lockey units are the ones that will land.
15) When would I specify an electronic cylindrical lock over the Marks USA 110N?
Whenever the opening needs access control or an audit record, since the 110N is a mechanical non-keyed passage set that stays unlocked. The Alarm Lock Trilogy T2 DL2700 is a Grade 1 standalone electronic cylindrical entrance lock with a digital keypad, 100 user codes, and IC/SFIC compatibility, fitting the same 1-5/8 inch to 1-7/8 inch door thickness the 110N covers. The Alarm Lock T3 DL3075 adds an audit trail. For classroom openings the TownSteel XCE-2000 is a Grade 1 heavy duty electronic keypad lockset for doors 1-3/4 inch to 2 inch.
16) What replaces the Marks USA 110N on an office door that needs to be lockable but is currently passage?
The Dorma C150 C100 Series is a Grade 1 heavy-duty cylindrical lock in entry/office function for doors 1-3/8 inch to 2-1/4 inch, which is the usual conversion when a passage opening needs to be securable. The Marks USA 110N cannot be locked - its F75 function retracts the latch by the knobs at all times. If the facility is on lever trim, the Dorma C853 is the Grade 1 keyed entrance lever over the same 1-3/8 inch to 2-1/4 inch range.
17) The door prep is bored for a 2-3/4 inch backset - which passage locks fit?
The Marks USA 110N is listed at a 2-3/4 inch backset with a 1-1/8 inch x 2-1/4 inch front, which is the E4 configuration; the standard 110N ships at a 2-3/8 inch backset. Among passage peers, the Cal-Royal CAL30 Calypso Series Grade 1 passage lockset and the Lockey 1600, a heavy duty mechanical keyless knob lock with an adjustable backset, are the other routes to that prep. Confirm the strike prep as well - the 110N uses a T-strike, 1-1/8 inch x 2-3/4 inch with a 1-1/8 inch lip and square corner.
18) Does the Stanley QTL230E passage lever work as a substitute for the Marks USA 110N?
Check the function before ordering it against a passage opening. The Stanley Security QTL230E-SA-478S is described as a Grade 2 passage lever with a Sierra bent lever, small rose, adjustable square latch and a 4-7/8 inch x 1-1/4 inch ANSI strike, but its listed product function is Deadbolt. The Marks USA 110N is Passage/Hall/Closet with an F75 function and ships with a T-strike, 1-1/8 inch x 2-3/4 inch with a 1-1/8 inch lip - a different strike prep from the 4-7/8 inch ANSI cutout. For a confirmed Grade 2 passage substitute, the Dorma CL701 CL700 Series lever carries the Passage/Hall/Closet function.
19) What finish does the Marks USA 110N come in, and will it match the rest of my building's hardware?
One finish: US32D satin stainless steel. That is the standard commercial dull-stainless look, so it sits alongside existing 630 satin stainless and most satin chrome trim without reading as a mismatch across a floor of doors. If your building is standardized on a brass or bronze finish, this one will not match.
20) Does the Marks USA 110N come with everything needed to install it, or do I have to order the latch and strike separately?
The set is complete for a standard bored opening: knobs on both sides, adjustable steel-reinforced roses at 2-3/4 inch diameter, the latch, and the T-strike. Nothing separate to order for the lock itself. What is not included is anything the door needs but does not have, so on a fire-rated opening confirm the frame prep matches the T-strike footprint of 1-1/8 x 2-3/4 inches before the crew shows up.
21) Which cylindrical locks will not fit the 1-5/8 inch to 1-7/8 inch doors the Marks USA 110N covers?
Several electronic peers are cut for thicker or narrower stock. The Schlage CO-100 privacy keypad lock, the TownSteel FCE-2000 and FCE-4000 RFID classroom locksets, and the Schlage XE360M wireless tubular lock are all listed at 1-3/4 inch only. The SDC E75 keypad lockset runs 1-3/4 inch to 2-1/8 inch and the SDC Electra 7200 runs 1-3/4 inch to 2 inch, so neither reaches a 1-5/8 inch door. The Alarm Lock DL2700 and DL5200 match the 110N range of 1-5/8 inch to 1-7/8 inch exactly.
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Does the Marks USA 110N-32D-E4 come with a warranty?
Absolutely. The Marks USA 110N-32D-E4 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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