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UL Certified Fire-Rated Door Locks

Commercial-Grade Mortise Locksets

ANSI/BHMA A156.13 Grade 1 Certified | Up to 3-Hour Fire Rating | Stainless Steel 304 Construction | OEM & ODM Available
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UL Listed
File No. R40901
ANSI/BHMA Grade 1
1,000,000 Cycle Tested
Up to 3-Hour
Fire Rated
Certified & Teste

UL Certification Advantages

Every D&D AL Series mortise lock is independently tested and certified to meet key North American fire, durability and accessibility standards—helping you simplify specification, approval and installation.

UL Listed

3-Hour Fire Rated
Certified under UL 10C Positive Pressure Fire Test for fire door assemblies. Every lockset is independently tested and listed by Underwriters Laboratories.
 

ANSI/BHMA Grade 1

1,000,000+ Cycles
Exceeds ANSI/BHMA A156.13 operational and security standards with all standard trim. Grade 1 is the highest durability rating for commercial hardware.
 

Positive Pressure Fire Test

UL 10C Certified
Meets the stringent UL 10C positive pressure fire test requirement. Suitable for fire-rated door assemblies in commercial and institutional buildings.

ADA Compliant

Barrier-Free Access
Meets ANSI A117.1 and ADA requirements for barrier-free accessibility. Lever-operated mechanisms ensure compliance in all public facilities.
 
Technical Date

Mortise Lock Case Specifications

Engineered with heavy-gauge 304 stainless steel components for maximum durability and fire-rated performance on commercial door assemblies.

Precision Dimensions

8" lock front with 2-3/4" backset and 3-5/8" center-to-center spacing, meeting ANSI/BHMA A156.13 standards.

Universal Fit

Non-handed design, field reversible. Compatible with both wood and metal doors up to 1-3/4" (44mm) thickness.
 

Heavy-Duty Materials

304 Stainless Steel lock case, front plate, strike, and auxiliary latch. One-piece hardened stainless deadbolt and latch bolt.

Flexible Cylinder Options

Solid brass 5-pin or 6-pin standard cylinder. Interchangeable core (IC) option with 6-pin "E" keyway available.

Full Specifications

Parameter

Specification

Lock Case

Heavy-gauge 304 Stainless Steel

Lock Front

8" × 1-1/4 

Strike Plate

4-7/8" × 1-1/4" × 1-7/8" (124mm × 32mm × 48mm), 304 Stainless Steel

Deadbolt

1" (25mm) throw, one-piece hardened stainless steel

Latch Bolt

3/4" (19mm) throw, one-piece hardened stainless steel

Auxiliary Latch

1/2" (13mm), 304 Stainless Steel, non-handed

Door Thickness

1-3/4" (44mm) standard

Backset

2-3/4" (70mm)

Center to Center

3-5/8" (92mm)

Handing

Non-handed, field reversible

Cylinder

Solid brass cylinder and plug, standard 5-pin or 6-pin; interchangeable core 6-pin

Keyways

Standard: "C" keyway; Interchangeable Core (IC): "E" keyway

Application

Wood and metal doors

Need Help Selecting the Right UL Door Lock?

Share your door type, lock function, finish and project requirements. D&D will help you identify a suitable UL-listed mortise lock solution.

UL Certificate of Compliance

File No. R40901 — Independently tested and listed by Underwriters Laboratories.

Ready to Specify UL Listed Locks?

Our team can help you select the right fire-rated hardware for your project.
Request a Quote
Product Range

UL Certified Lock Systems

ANSI/BHMA A156.13 certified mortise locksets with up to 3-hour fire rating.Designed and constructed with high-quality stainless steel 304 components.

Certified Mortise Locks

 
 
Function Description:
Latch bolt operated by lever from either side. Outside lever can be locked by stop or mechanical means (non-key); once locked, latch bolt releases only by outside key or inside lever. Auxiliary dead latch included.
Ideal For:
Offices, commercial entrances, meeting rooms and general access doors.
 
 
 
Function Description:
Latch bolt operated by lever from either side. Outside lever can be key-locked and key-unlocked from outside; inside lever remains operable at all times. Auxiliary dead latch included.

Ideal For:
Classrooms, training rooms, educational buildings and public facilities.
 
 
 
Function Description:
Outside lever is always inoperative — latch bolt releases only by outside key or inside lever. Ideal for storage or supply rooms requiring one-way access control. Auxiliary dead latch included.

Ideal For:
Storerooms, warehouses, equipment rooms and restricted access areas.
 
 
 
Function Description:
Latch bolt operated by lever from either side at all times. Deadbolt projects by outside key or inside thumb-turn. Inside lever retracts both bolts and unlocks outside — supports quick interior egress.
 
 
 

Ideal For:
Dormitories, apartments, residential buildings and exit doors.
 
 
 
Function Description:
Latch bolt operated by lever from either side. Deadbolt engaged only by inside thumb-turn, with emergency release from outside. Inside lever retracts both bolts simultaneously.
 
 
 

Ideal For:
Bedrooms, bathrooms, hotel rooms and private residential spaces.
 
 
 
Function Description:
Latch bolt operated by lever from either side; outside lever can be deactivated by stop. Deadbolt controlled by outside key or inside thumb-turn — outside key operates both bolts. Operating inside lever retracts both bolts while the outside stays locked. Latch bolt deadlocks when outside lever is inactive or deadbolt is projected.
Ideal For:
Apartment entrance doors, residential corridors, condominiums and multi-family housing.
 

Standard Mortise Locks

 
 
Function Description:
The latch is operated by the lever from either side at all times. Both inside and outside levers remain free for convenient access.
 
 

Ideal For:
Closets, corridors and interior passage doors.
 
 
 
Function Description:
The deadbolt is operated by an inside thumb turn and can be released from the outside in an emergency. Operating the inside lever retracts both the latch and deadbolt for safe exit.
Ideal For:
Bedrooms, bathrooms and hotel guest rooms.
 
 
 
Function Description:
The outside lever can be locked or unlocked by key, while the inside lever always allows free exit. An auxiliary deadlatch provides additional security.

Ideal For:
Apartments, public restrooms and exit doors.
 
 
 
Function Description:
The deadbolt is operated by key from the outside only. It provides simple, reliable security for doors requiring controlled access.
 
 
 

Ideal For:
Utility rooms, storage areas and service doors.
 
 
 
Function Description:
The inside thumb turn locks the outside lever, while the inside lever always allows free exit. The outside lever can also be released by emergency access when required.
 

Ideal For:
Bedrooms, bathrooms and private residential spaces.
 
 
 
Function Description:
The latch is operated by the inside lever, while the outside is supplied with a blank plate or no lever for restricted access. An auxiliary deadlatch provides additional security.

Ideal For:
Connecting rooms, emergency exits and communicating doors.

Looking for UL-Listed Door Locks for Your Next Project?

D&D offers UL 10C 3-hour fire-rated mortise locks under File No. R40901, with OEM branding, custom finishes and project-based hardware support.

Lever Handles

 
 
Shape: Classic U curved lever
Material: Solid SUS304 / SUS316 stainless steel
Escutcheon: 12mm thick round plate, Ø62mm
Overall length: 137mm
 
 
 
Shape: Minimal flat cut straight lever
Material: One-piece solid SUS304 / SUS316 stainless steel
Escutcheon: 12mm thick round plate, Ø62mm
Overall length: 132mm
 
 
 
Shape: Wide crescent curved lever
Material: Solid SUS304 / SUS316 stainless steel
Escutcheon: 12mm thick round plate, Ø67mm
Overall length: 133mm
 
 
 
Shape: Slim streamlined curved lever
Material: Heavy solid SUS304 / SUS316 stainless steel
Escutcheon: 12mm thick round plate, Ø62mm
Overall length: 126.5mm
 

Cylinders

 
 
• Standard: Comply with ANSI mortise cylinder standards
• Pin option: 5 pins / 6 pins available
• Compatible key brands: SCHLAGE, Kwikset, Weiser & Pin-in-pin system
• Structure: Mortise cylinder with cam; master key system supported
• Material: Solid brass
• Surface finish: 626 / US26D satin chrome
 
 
 
Fast rekeying without full lock disassembly
Low labor cost for frequent core replacement
Ideal for exit devices & full-glass commercial doors
 
 
 
 
 
 
 
 
 
 
 
Type: Small Format SFIC interchangeable core
Pin options: Compatible with 6-pin & 7-pin cores
Fitment: Works for mortise housings, rim housings & cylindrical locks
Order note: Control keys not included when ordering cores only
Requirement: Specify control keys separately if needed
 
 
 
 
Match: Compatible with all small format IC cores
Material: Solid brass construction
Installation: Mount the same way as standard mortise cylinder
 
 
 
 
Material: Solid brass body
Surface: Multiple finish options available
Cam types: Optional Type A / Type B cam for different lock bodies
 

Thumbturns & Indicators

 
 
Indicator
 
 
 
Thumbturn
 
 
 
Cylinder guard
 
Cylindrical Series

UL Listed Commercial Cylindrical Locksets

Designed for commercial buildings, D&D UL Listed Cylindrical Locksets combine certified fire safety, ANSI/BHMA Grade 1 & Grade 2 performance and reliable everyday operation. Available in both lever and knob configurations with removable core cylinder options, they are engineered for standard ANSI door preparation and flexible OEM & ODM customization.
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UL Listed
Certified for commercial fire-rated door applications.
 
Lever & Knob Options
Choose from cylindrical lever or knob locksets for different door applications.
Removable Core Cylinder
Available with 5-pin or 6-pin removable core cylinders using Schlage "C" keyway.
ANSI Grade 1 & Grade 2
Available in both Grade 1 and Grade 2 options to suit different commercial applications.
Standard ANSI Preparation
Compatible with standard ANSI door preparation for fast and convenient installation.
OEM & ODM
Customized finishes, keyway options and private branding for your market.

Need a Custom Locking Solution?

OEM & ODM available — custom finishes, keyways and private branding for your market.
Where Our Locks Excel

Application Scenarios

Trusted by architects, contractors, and building managers across diverse commercial and institutional environments.

Office Buildings

UL Listed door locks for secure and fire-rated commercial office doors.

Hotels & Hospitality

Fire-rated door locks designed for hotels, guest rooms, and hospitality projects.

Healthcare Facilities

Reliable UL door locks for hospitals, clinics, and healthcare buildings.

Educational Institutions

Commercial door locks that enhance safety in schools, universities, and campuses.

Government Buildings

Certified fire-rated door locks for government offices and public facilities.

Commercial & Mixed-Use Buildings

Heavy-duty UL door locks for retail, office, and mixed-use developments.
Video Gallery

See Our Locks in Action

Watch product demonstrations and installation guides to learn more about our UL certified door lock systems.

UL Listed Door Lock Product Video

Discover the design, key features, and fire-rated performance of our UL Listed Commercial Door Locks. Built to meet UL 10C requirements for commercial and fire door applications.

UL Listed Door Lock Product Video

Discover the design, key features, and fire-rated performance of our UL Listed Commercial Door Locks. Built to meet UL 10C requirements for commercial and fire door applications.

Partner with D&D

Supporting distributors and commercial projects worldwide.
FAQs

Frequently Asked Questions

Find answers to common questions about our UL Listed door locks, certifications, and services.

Contact Info

:+86-139 2903 7292   David Jian

:  +86-750- 3856396

 : sales@dndhardware.com
 
: +86-139 2903 7292
 
 : +86-139 2903 7292

:  12th Floor, Building 2, No.898, KeChuang Technical Zone,
Jiangmen Avenue, Pengjiang District, Jiangmen City, Guangdong, China
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