American Mortise Lock is a professional mortise door lock solution developed for hotels, commercial buildings, and architectural projects. It features key operation from outside and lever operation from inside, providing convenient access management for different applications. The product includes a heavy gauge stainless steel lockcase with SUS304 deadbolt and latchbolt components, complies with ANSI/BHMA A156.13-2005 Grade 1 standards, and is UL Fire Rated certified for wood doors and metal doors.
| Product Model | DDAL15 F15 |
| Certification and Compliance | ANSI/BHMA A156.13-2005 Grade 1, UL Fire Rated Certificated |
| Finish | SSS, PSS, PVD |
| Lockcase | Heavy Gauge Stainless Steel For Corrosion Resistance |
| Deadbolt | Solid Casting SUS304, Project 1"(25.4mm) |
| Latchbolt | Solid Casting SUS304, Project 3/4"(19mm), Anti-Friction Two Pieces and Can be Reversible |
| Auxiliary Latchbolt | Stainless steel |
| Forend | Stainless steel Grade 304 |
| Strike | Stainless steel Grade 304, Non-Handed |
| Door Thickness | 45mm to 55mm As Standard |
| Backset | 2-3/4” (70mm) |
| Center to Center | 3-5/8”(92mm) |
| Door Handing | Left Hand and Right Hand |
| Application | Wood Door and Metal Door |
1. Hotel Lock Function
American Mortise Lock features a hotel guest lock function with outside lever always inoperative and key-controlled access from outside. The inside lever operation retracts both latchbolt and deadbolt, providing convenient access control for hotel rooms and managed areas. This configuration meets professional requirements for hospitality door hardware projects.
2. SUS304 Bolt Components
This American Mortise Lock adopts a solid casting SUS304 deadbolt with a 1"(25.4mm) projection length and a solid casting SUS304 latchbolt with a 3/4"(19mm) projection. The latchbolt features an anti-friction two-piece structure with reversible adjustment, allowing flexible installation for different door handing requirements.
3. Grade 1 Certification
American Mortise Lock complies with ANSI/BHMA A156.13-2005 Grade 1 standards and is UL Fire Rated certified for hotels, commercial buildings, and public projects. The product includes stainless steel Grade 304 forend and strike components with a non-handed strike design, providing standardized door hardware solutions for professional construction applications.
4. Standard Installation Sizes
This product supports door thickness from 45mm to 55mm, featuring a 2-3/4”(70mm) backset and 3-5/8”(92mm) center-to-center dimension. American Mortise Lock supports left-hand and right-hand door handing options, making it suitable for different door structures. Standard dimensions simplify bulk installation for contractors and distributors.
5. Stainless Steel Finishes
American Mortise Lock is available in SSS, PSS, and PVD finishes to match different hotel, office, and commercial interior designs. The stainless steel components combined with refined surface treatments provide a coordinated appearance. Buyers can select suitable configurations according to project styles and door hardware requirements.
1. Hotel Rooms
Hotel rooms require door locks with professional access management functions. American Mortise Lock features hotel-style locking operation and is suitable for wooden and metal guest room doors. The outside key control and inside lever operation design meet daily hotel management requirements for large hospitality projects.
2. Office Buildings
Office buildings require professional door hardware for offices, meeting rooms, and management areas. American Mortise Lock is suitable for wooden and metal doors in commercial environments. Different handing options provide installation flexibility, while ANSI Grade 1 certification supports commercial construction requirements.
3. Apartment Projects
Apartment developments require standardized door locks for large-scale installation. American Mortise Lock is suitable for residential unit doors, shared areas, and interior spaces. SUS304 bolt components and standard installation dimensions provide suitable solutions for developers and door manufacturers.
4. Commercial Renovation
Commercial renovation projects require door hardware that supports efficient replacement and design coordination. American Mortise Lock can be installed on wooden and metal doors in shopping centers, service areas, and commercial spaces. Standard specifications and finish options help contractors upgrade existing door systems.

D&D Hardware is a professional manufacturer and supplier of architectural door hardware and complete door opening solutions. With over 18 years of manufacturing experience and ISO 9001 certification, we serve global customers from our production base in China, delivering reliable hardware solutions for metal doors, wooden doors, and fire-rated doors.
Our product portfolio covers a full range of commercial and architectural hardware, including door hinges, door locks, lever handles, door closers, exit devices, door stoppers, door bolts, and related accessories. In addition to standard product lines, we offer flexible customization options to support specific project requirements, while ensuring each product meets the functional, safety, and durability demands of modern building applications across diverse environments.