Publish Time: 2026-05-19 Origin: D&D HARDWARE
Grade 1 Commercial Security Solutions
Engineered for high-traffic commercial and institutional environments. ANSI/BHMA certified with UL 10C 3-hour fire rating, built from SUS304 stainless steel for uncompromising durability and security.
BHMA Certified ANSI Grade 1 UL 3-Hr Fire Rated
Product Features
Every D&D ANSI mortise lock is precision-engineered to deliver superior security, durability, and ease of installation for demanding commercial environments.
Multiple functions in one case design. A single lock body supports passage, privacy, classroom, storeroom, entrance, and deadbolt configurations, reducing inventory complexity.
Easily reverse the handing on-site without opening the lock case. Saves installation time and simplifies logistics for left-hand and right-hand door applications.
0
Locking thumbturn on the inside visually shows whether the door is locked or unlocked, enhancing security awareness for occupants in commercial spaces.
0
Lever handles operate independently, ensuring smooth and reliable operation. The auxiliary dead latch prevents unauthorized entry through latch manipulation.
All lock shells and face plates are constructed from SUS304 stainless steel, providing exceptional corrosion resistance and long-term durability in demanding environments.
Designed for both metal and wooden doors. Compatible with standard ANSI door preparations, making it suitable for new construction and retrofit projects alike.
ANSI Lock Grades
ANSI mortise locks are classified into three grades based on durability, security, and intended use. D&D Hardware specializes in Grade 1 locks that meet the highest commercial standards.
Security Level: Highest
✔Maximum forced-entry resistance
✔Heaviest duty cycle rating
✔Required for fire-rated assemblies
✔Best for critical security areas
Applications: Hospitals, airports, government buildings, schools
Security Level: Medium-High
✔Good forced-entry resistance
✔Suitable for moderate traffic
✔Cost-effective for offices
✔Standard commercial choice
Applications: Offices, retail stores, schools
Security Level: Standard
✔Basic security level
✔Residential applications
✔Light-duty environments
✔Budget-friendly option
Applications: Residential, light commercial
Product Range
D&D Hardware offers a comprehensive range of ANSI mortise lock functions to meet every commercial door requirement. From passage latches to high-security entrance locks, each model is built with SUS304 stainless steel and certified to ANSI/BHMA Grade 1 standards.
•Certification: UL 10C FIre Rated 3 Hours, UL File NO.R40901
• Lock Case: heavy gauge stainless steel 304
• Lock Front: L8" x W1.26" x H0.18" stainless steel 304
• Strike Plate: L4.88" x W1.26" x 1.87" stainless steel 304
• Deadbolt: 1" projection, one-piece hardened stainless steel 304
• Latchbolt: 0.75" projection, one-piece hardened stainless steel 304
• Auxiliary latch deadlock: 0.5" high, stainless steel 304 and non-handed
• For 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. 5 or 6-pin are available on standard cylinders. 6-pin is available for interchangeable core cylinder.
• Keyways: “C” keyway standard on standard cylinder. “E” keyway standard on I/C cylinder.
• Application: For wood door and Metal door
| Outside/Inside | Model | Type | Description |
| | DDAL01 | Passage or closet Latch | Latch bolt operated by lever from either / both side at all times. |
| | DDAL04 | Enty Lock | Latch bolt operated by lever from either side except when outside lever is made inoperative by a stop or mechanical means other than key. When outside lever is locked, latch bolt retracted by key from outside or byoperating inside lever. Auxiliary dead latch. |
| | DDAL05 | Classroom Lock | Latch bolt operated by lever from either side except when outside lever is locked from outside by key. When outside lever is locked, latch bolt retracted by key, or by operating key and outside lever from outside or by operating inside lever. Auxiliary dead latch. |
| | DDAL06 | Holdback Lock | Latch bolt operated by lever from either side except when outside lever is locked from outside by key. Latch bolt can be locked in a retracted position by key.When outside lever is locked, latch bolt retracted by key from outside or by operating inside lever unless latch bolt has been locked in a retracted position. Auxiliary dead latch. |
| | DDAL07 | Storeroom or Closet | Latch bolt operated by key from outside or by operating inside lever. Outside lever is alwaysinoperative. Auxiliary dead latch. |
| | DDAL09 | Apartment, Exit or Public Toilet Lock | Latch bolt operated by lever from either side, except when outside lever is locked by key from inside. Whenoutside lever is locked, latch bolt retracted by key from outside or by operating inside lever. Auxiliary dead latch. |
| | DDAL12 | Dormitory or Exit Lock | Latch bolt operated by lever from either side, except when outside lever is made inoperative by astop or mechanical means other than key. Dead bolt projected by key from outside and by thumbturn from inside. Dead bolt retracted by key from outside and by thumb turn from inside. Operatinginside lever retracts both bolts and outside remains locked. |
| | DDAL13 | Dormitory or Exit Lock | Latch bolt operated by lever from either side.Dead bolt projected by key from outside and thumbturn from inside.Operating inside retracts both bolts and unlocks outside. |
| | DDAL14 | Door Lock | Latch bolt operated by lever from either side. Dead bolt operated by key from either side. |
| | DDAL15 | Hotel Guest Lock | Latch bolt operated by key from outside or by operating inside lever.Outside leveris alwaysinoperative. Dead bolt projected by thumb turn from inside.Operating inside lever retracts bothbolts. Auxiliary dead latch. |
| | DDAL16 | Dead Lock | Dead bolt operated by key from either side. |
| | DDAL17 | Dead Lock | Dead bolt operated by key from outside and by thumb turn from inside. |
| | DDAL18 | Dead Lock | Dead bolt operated by key from outside only. |
| | DDAL02 / DDAL19 | Privacy, Bedroom or Bath Lock | Latch bolt operated bylever from either side. Dead bolt operated by turn from inside andemergency release from outside. Operating inside lever retracts both bolts. |
| | DDAL20 | Apartment Corridor Door Lock | Latch bolt: lever from either side, except when outside lever is stopped mechanically (non-key). Dead bolt: key outside / thumb turn inside. Outside key operates both bolts. Inside lever retracts both bolts; outside remains locked. Latch bolt is deadlocked when outside lever is inoperative or dead bolt is projected. When dead bolt retracts, lever is unlocked by a stop. |
| | DDAL21 | Room Door Lock | Latch bolt operated by lever from either side.Dead bolt operated by key from outside orthumb turn from inside. |
| | DDAL22 | Privacy, Bedroom or Bath Lock | Latch bolt operated bylever from either side except when outside lever is locked by insidethumb turn.Operating inside lever, closing door or operating outside emergency releaseunlocks outside lever. |
| | DDAL29 | Classroom Dead Lock | Key from outside operates dead bolt.Turn from inside retracts but does not project dead bolt. |
| | DDAL30 | Asylum or Institutional Lock | Latchbolt operated by key either side.Both levers are always inoperative. Auxiliary deadlatch. |
| | DDAL32 | lntruder Latch Bolt Lock | Latch bolt operated by lever from either side except when outside lever is locked frominside or outside by key. When outside lever is locked, latch bolt is retracted by key frominside or outside or by operating inside lever. Auxiliary dead latch. |
| | DDAL33 | lntruder Dead Bolt Lock | Latch bolt operated by lever from either side except when outside lever is locked from insideor outside by key. Dead bolt retracted by key from inside or outside.Operating inside lever retracts both boltsand unlocks outside. |
| | DDAL34 | lntruder Dead Bolt Lock | Latch bolt: lever from either side, except when outside lever is locked by key from inside/outside. Dead bolt: key retracts from either side. Inside lever retracts both bolts and unlocks outside. Auxiliary dead latch is deadlocked when dead bolt is thrown. |
| | DDAL35 | Store Door Lock | Latch bolt operated by lever from either side, except when outside lever is made inoperative by stop or mechanical means other than key.Dead bolt operated by key fromeither side. |
Certifications & Standards
Every D&D Hardware ANSI mortise lock undergoes rigorous testing and certification to meet the highest international standards for security, fire safety, and durability.
Grade 1 Certified
Tested and certified to ANSI/BHMA A156.13-2005 Grade 1, the highest standard for commercial mortise locks. Exceeds 1,000,000 cycle durability testing.
3-Hour Fire Rated
UL listed with a 3-hour fire rating, ensuring compliance with fire door assembly requirements. Critical for life safety in commercial buildings.
Quality Assured
Listed by the Builders Hardware Manufacturers Association, verifying that all products meet rigorous performance and quality standards.
ANSI Mortise Locks Accessory
Components for ANSI Mortise Locks
6 Pin SCHLAGE“C" Keyway Mortise Cylinder
•ANSl Mortise Cylinder Standards
•5 pins, 6 pins available
•SCHLAGE, Kwikset, weiser &Pin-in-pin system
•Mortise cylinder with cam
•Master key system is available
•Material: Brass
•Finish: 626/US26D,Satin chrome
IC Core Cylinder 6 Pin Interchangeable Core Cylinder
• Mortise Cylinder lC Core Housing, Small Format Best, 26D
•Mortise Cylinder lC Core Housing, Big Format Schlage“C", 26D
•lnterchangeable core users can enjoy the convenienceof fast rekeying without having to disassemble the lock. This feature is very useful in applications where a highfrequency of core changes are needed or a lock disassembly is labor intensive such as with exit devicesand certain types of all-glass doors.
Door Handle (with plate)
Indicator / Thumbturn
Cylinder Guard
Cam Type
Complete Solutions
D&D Hardware provides a complete ecosystem of door hardware components designed to work seamlessly together. From lever handles to panic exit devices, every accessory is engineered to complement our ANSI mortise locks for a unified, high-performance door system.
Lever Handles
Stainless steel lever handles available in multiple designs and finishes. Ergonomic design meets ADA compliance requirements for commercial applications.
Full-face escutcheons and roses in round or square profiles. Precision-machined from stainless steel to complement the mortise lock body perfectly.
Hydraulic door closers designed to work seamlessly with mortise lock installations. Adjustable closing speed and latching speed for optimal performance.
Applications
D&D ANSI mortise locks are the preferred choice for architects, contractors, and facility managers across a wide range of commercial and institutional applications.
| | Fire-rated corridors, patient rooms, and restricted areas |
| | Classrooms, laboratories, and administrative offices |
| | Secure offices, courtrooms, and public facilities |
| | Entrances, conference rooms, and server rooms |
| | Guest rooms, back-of-house, and meeting facilities |
| | Warehouses, utility rooms, and storage areas |
FAQ
Find answers to common questions about our ANSI mortise locks, certifications, and door hardware solutions.
An ANSI mortise lock is a heavy-duty locking mechanism that is installed within a rectangular pocket (mortise) cut into the edge of a door. Unlike cylindrical locks that are installed through a bored hole, mortise locks provide superior strength, multiple locking functions in a single unit, and greater resistance to forced entry. They are the preferred choice for commercial and institutional applications where security and durability are paramount.
ANSI Grade 1 is the highest security and durability rating under the ANSI/BHMA A156.13 standard. A Grade 1 mortise lock has been tested to withstand over 1,000,000 cycles of operation, offers the maximum forced-entry resistance, and meets the strictest requirements for commercial use. This certification is typically required for hospitals, airports, government buildings, and other high-traffic environments.
Yes. All D&D Hardware ANSI mortise locks are UL 10C listed with a 3-hour fire rating. This means they have been tested and certified for use in fire-rated door assemblies, ensuring compliance with building codes and fire safety regulations. We provide complete UL certification documentation with every order.
D&D Hardware ANSI mortise locks feature SUS304 stainless steel construction for the lock body, face plate, and strike plate. SUS304 is a premium-grade austenitic stainless steel known for its excellent corrosion resistance, durability, and strength. This material choice ensures long-term performance even in harsh or high-humidity environments.
Absolutely. D&D ANSI mortise locks are designed for universal compatibility with both metal (hollow metal) and wooden doors. They conform to standard ANSI door preparations, making them suitable for new construction projects as well as retrofit applications. Our technical team can provide specific guidance for your door type and application.
D&D Hardware offers a comprehensive range of ANSI mortise lock functions including: Passage (F01), Privacy (F02), Office/Entry (F04), Classroom (F05), Storeroom (F07), Apartment Entrance (F09), Corridor (F13), Store/Utility with Deadbolt (F14), Deadlock (F16/F17), Entrance (F20), and Room Door (F21). Each function is available in a universal lock case design, allowing field-reversible handing without opening the lock case.
The right function depends on your security requirements and how the door will be used. For general passage areas, choose F01 (Passage). For offices requiring lockable access, F04 (Office) or F05 (Classroom) are ideal. For storerooms needing key-only access from outside, select F07 (Storeroom). For maximum security with both latch and deadbolt, consider F13 (Corridor) or F20 (Entrance). Contact our team at sales@danddhardware.com for personalized recommendations.
Yes. Beyond mortise locks, D&D Hardware provides a complete range of matching door hardware including lever handles, escutcheon plates, lock cylinders, door closers, door hinges, panic exit devices, door stoppers, and door bolts. All components are designed to work together seamlessly, ensuring consistent quality and aesthetics across your entire door hardware specification.
D&D Hardware offers flexible ordering options to accommodate projects of all sizes. We maintain stock of popular models for quick delivery and can accommodate custom orders with competitive lead times. For specific MOQ and lead time information, please contact our sales team at sales@danddhardware.com or call +86 139 2903 7292.
Yes. We provide comprehensive certification documentation including ANSI/BHMA test reports, UL fire rating certificates, BHMA listing documents, and product specification sheets. These documents are available upon request and can be customized for your project submission requirements. Contact us to receive the complete documentation package.