Round Deadbolt Lock DDLK022 series offers a practical security solution for residential and light commercial doors, combining stable mechanical performance with a clean circular rosette design. The lockset is available in both single cylinder and double cylinder configurations, allowing flexible selection based on security requirements and door environments. With a solid brass cylinder and precision-engineered internal structure, it ensures reliable locking performance and smooth operation over long-term use. The 70mm zinc alloy rosette provides a balanced visual proportion while maintaining structural strength, making it suitable for modern door hardware systems. Its adjustable backset and compatibility with standard door thickness ranges allow easy installation across various door types. Multiple surface finishes support consistent matching with different architectural styles and project specifications.
| Product Model | DDLK022-A | DDLK022-B |
| Type | Single Cylinder Deadbolt Lock | Double Cylinder Deadbolt Lock |
| Cylinder + Keys | Brass | |
| Rosette | Zinc Alloy | |
| Rosette Diameter | 70mm | |
| Door Thickness | 1-3/8" to 1-3/4" (35mm to 45mm) | |
| Backset | Adjustable 2-3/8"(60mm),2-3/4"(70mm) | |
| Finish | SSS, AB, AC, PB, US10B | |
| Mechanism Option | Tubular Type | |
| MOQ | 100PCS | |
| Package | 1pc / poly bag, white box / color inner box, standard export carton | |
| Sample Time | 5-7 working days | |
| Production Lead Time | 30-35 days normally | |
| Shipping Port | Jiangmen, China / Shenzhen, China | |
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.
