The ANSI mortise lock without deadbolt has become a preferred solution in commercial interiors where reliability, compliance, and smooth operation matter more than added bolt security. In offices, hotels, healthcare facilities, and institutional buildings, many doors require controlled access without the complexity of a secondary deadbolt.
If you are specifying hardware for interior commercial doors, understanding the structure, functions, and certification standards of a mortise lock without deadbolt is essential. In this guide, we explain how it works, where it is used, and how to choose the right model for your project.
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What Is an ANSI Mortise Lock Without a Deadbolt?
An ANSI mortise lock without deadbolt is also referred as a non-deadbolt mortise lock or mortise latchset. It is a lock body installed inside a mortised pocket within the door edge that operates using a latch mechanism only. Unlike a traditional entry set that combines latch and deadbolt, a non deadbolt mortise lock relies solely on the spring latch for door securing and controlled access.
An ANSI mortise passage lock without deadbolt typically functions in passage, privacy, classroom, or office applications. The absence of a secondary deadbolt simplifies operation while maintaining structural durability and ANSI/BHMA compliance.
In comparison, an entry set with deadbolt offers two locking points. A latch-only ANSI mortise latchset provides single-point latching, faster egress, and reduced maintenance complexity.
1. Why Select ANSI Mortise Latch Only Instead of Deadbolt
Many professionals ask: Why choose ANSI mortise latch only over deadbolt?
A commercial mortise lock without deadbolt is particularly suitable for office doors, hotel guest rooms, corridors, healthcare environments, and educational buildings where ease of access and safety compliance are priorities.
For many interior applications, an ANSI mortise lockset without deadbolt for interior doors delivers sufficient security while enhancing usability.
Faster emergency egress
Simplified daily operation
Lower maintenance requirements
Cost efficiency
Compatibility with fire-rated doors
Ideal for interior commercial use
2. Where The Mortise Locks without Deadbolt Actually Get Used
A commercial ANSI mortise lock without deadbolt is widely specified in the following environments:
Office Doors
Interior office doors, including meeting rooms, executive suites, shared workspaces, frequently use the ANSI mortise latchset no deadbolt for office doors format. These doors need privacy or access control, not a deadbolt that slows down daily foot traffic. For interior spaces, the ANSI grade 1 mortise passage lock without deadbolt provides durability for high-cycle usage.
Hotels and Hospitality
Guest room entry doors may use electronic systems, but corridor doors, stairwell access doors, and service room doors in hotel environments are natural fits for the latch-only mortise configuration.
Fire-Rated Doors
A fire rated ANSI mortise lock without deadbolt is frequently paired with fire-rated door assemblies. In such cases, an ANSI mortise lock for fire-rated door without deadbolt latch only must meet UL fire testing standards.
Wood Doors in Commercial Settings
The ANSI mortise latchset without deadbolt for wood doors is widely specified in mid-rise residential, boutique hospitality, and educational buildings where solid wood or solid-core wood doors are the standard.
Institutional Buildings
Hospitals, clinics, and care facilities require smooth, code-compliant hardware. Latch-only configurations support ADA-compliant lever trim and comply with life safety egress requirements throughout.
ANSI Mortise Lock Functions Without Deadbolt Explained
The ANSI function codes to mortise locksets based on how they control access. Understanding which ANSI mortise passage function lock with latch only you need is essential before purchasing. Here are the key functions in the latch-only category.
1. Passage Function, F01
An ANSI mortise passage function lock with latch only allows free operation from both sides without key locking. Latch always retracted; no locking on either side. Both levers always free.
2. Privacy Function, F19
Often used in restrooms or patient rooms, privacy versions include interior thumbturn locking with emergency release. Inside turn button locks outside lever; emergency release from outside. Latch-only operation.
3. Office / Entry Function, F04
An ANSI mortise entry set with latch only no deadbolt allows exterior key access and interior lever operation. Outside lever locked/unlocked by key; inside lever always free. No deadbolt involved.
4. Classroom Function, F05
Used in educational settings, enabling exterior locking while maintaining interior free egress. Outside lever locked/unlocked by key; inside lever always free. No outside key cylinder for routine use.
5. Corridor Function, F07
Common in institutional applications where controlled exterior entry is required. Both levers free except when outside lever is secured by key. Allows free egress always.
When specifying hardware, understanding which ANSI mortise function is latch only no deadbolt ensures correct functional performance.
What Grade ANSI Mortise Lock to Specify for Commercial Use
ANSI/BHMA classifies mortise locks into three grades based on cycle testing, strength, and finish durability. For commercial work, Grade 1 is the standard expectation.
1,000,000 cycle rated
Highest strength & durability
Required for most commercial specs
Suitable for high-traffic doors
Fire-rated options available
250,000 cycle rated
Suitable for lighter use
Lower-traffic interior doors
Not typically fire-door rated
Lower cost per opening
For most commercial and institutional projects, the ANSI Grade 1 mortise passage lock without deadbolt is the correct starting point. It meets the cycle life expectations of building owners and satisfies most architectural specification requirements out of the box.
Camax ANSI Mortise Lock Without Deadbolt Solutions
Camax manufactures a comprehensive range of ANSI mortise latchsets and ANSI mortise passage locks without deadbolt designed specifically for commercial and institutional applications. These are not catalog products — they are engineered to meet the real demands of high-volume commercial hardware specifications.
Camax manufactures professional-grade ANSI mortise lock without deadbolt systems certified to:
ANSI/BHMA A156.13-2020 Grade 1 (1,000,000 cycles)
UL 10C 3-hour fire rating
Our commercial ANSI mortise lock without deadbolt models are available in Passage (F01), Privacy (F19), Office/Entry (F04), Classroom, and Corridor functions.
- • ANSI commercial mortise locks
- • Certificate: BHMA listed; ANSI/BHMA A156.13-2020, Grade 1 (1, 000, 000); UL10C 3-hour fire rating.
- • Lockcase: Heavy-gauge steel, with zinc dichromate finish for corrosion resistance.
- • Deadbolt: One-piece stainless steel, 25mm throw.
- • Latchbolt: Stainless steel, 2 pieces mechanical with anti-friction insert, 19mm throw.
- • Auxiliary Latchbolt: stainless steel.
- • Strike: stainless steel, ANSI straight lip standard 4-7/8" (124mm) x 1-1/4" (32mm).
- • Door thickness: 1-3/4" (45mm) standard. Optional 1-3/8" (35mm), 2-1/2" (64mm).
- • Backset: 2 3/4" (70mm).
| Outside/Inside | SKU | Type | ANSI | Function Description |
|---|---|---|---|---|
 |
CML804 | Office and Inner Entry Lock | F04 | Latch bolt operated by lever from either side except when outside lever is made inoperative by thumbturn or key. When the outside lever is locked, the latch bolt is retracted by key from the outside or by operating the inside lever. Auxiliary dead latch. |
 |
CML809 | Apartment Entrance Lock | F09 | Latch bolt operated by lever from either side, except when outside lever is locked by key from inside. When outside lever is locked, latch bolt is retracted by the key from the outside or by operating the inside lever. Auxiliary dead latch. |
 |
CML801 | Passage Latch | F01 | Latch bolt operated by lever from either side at all times. |
 |
CML802 | Privacy, Bedroom or Bath Lock | F22 | Latch bolt retracted by knob/lever from either side unless outside is locked by inside thumbturn or outside coin turn. Operating the inside knob/lever, closing the door, rotating the inside thumbturn, or rotating the outside coin turn unlocks the outside knob/lever. The inside knob/lever is always free for immediate egress. |
 |
CML802B | Privacy, Bedroom or Bath Lock | F22 | Latch bolt retracted by knob/lever from either side unless outside is locked by inside thumbturn. Operating the inside knob/lever, closing the door, or operating outside emergency release unlocks the outside knob/lever. The inside knob/lever is always free for immediate egress. |
 |
CML805 | Classroom Lock | F05 | Latch bolt operated by lever from either side except when outside lever is locked from outside by key. When the outside lever is locked, the latch bolt is retracted by key, or by operating the inside lever. Auxiliary dead latch. |
 |
CML807 | Storeroom Lock | F07 | Latch bolt operated by key from outside or by operating inside lever. The outside lever is always inoperative. Auxiliary dead latch. |
How to Select ANSI Mortise Lock Without Deadbolt for Your Project
If you are researching how to choose ANSI mortise lock without deadbolt, consider the following technical factors.
1. Grade and Duty Cycle
Match the ANSI grade to the expected traffic load. Grade 1 for any door seeing more than a few hundred daily cycles; Grade 2 only for low-traffic interior doors where budget is a hard constraint.
2. Door Thickness and Backset
Most ANSI mortise latchsets are dimensioned for doors ranging from 1-3/4" to 2-1/4" thick. Confirm backset dimensions (typically 2-3/4" or 3-3/4") against your door specs before ordering. Mismatched backsets are one of the most common installation errors.
3. Fire Rating Requirements
If the door is in a fire-rated wall assembly, you'll need a fire rated ANSI mortise lock without deadbolt that's UL 10C listed. Not all latchsets carry fire ratings — confirm explicitly during product selection.
4. Latch Type and Handing
Most commercial mortise latchsets use a standard spring latch, but some projects require a deadlatch (a latch that cannot be shimmed). Confirm handing — whether the door is left-hand or right-hand swing — and whether the product is handed or reversible in the field.
5. Trim Compatibility
The mortise case must be compatible with your selected lever trim. ANSI-standard mortise cases accept a wide range of lever and rose combinations, but confirm hub dimensions and spindle compatibility before finalizing the package.
6. Interior vs. Exterior
Latch-only mortise locks are designed for interior applications. If you're specifying an exterior door, you'll want a full entry set — typically with a deadbolt — rather than a latchset-only configuration.
Contact Camax for Reliable ANSI Mortise Locks Without Deadbolt for Modern Commercial Doors
The ANSI mortise lock without deadbolt is a purpose-built solution for the kinds of doors that define most commercial interiors: office doors, corridors, fire-rated assemblies, and institutional spaces where smooth egress and reliable latch function matter more than perimeter security. Choosing the right function, grade, and configuration makes all the difference between a hardware package that holds up for years and one that generates maintenance calls.
Whether you're sourcing a single-project package or working on a large-scale specification, Camax's certified ANSI mortise latchsets offer the performance standards, function variety, and customization options to fit virtually any commercial opening requirement.
Contact Camax team for product samples, technical specifications, OEM pricing, and private-label options for your next commercial project.
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