The Cylindrical Lever Lock offers a practical and reliable locking solution for a wide range of commercial and residential door applications. Suitable for flush timber, wooden, aluminium, and steel doors, this lockset ensures smooth operation and consistent performance under daily use. With a door thickness compatibility ranging from 35mm to 45mm, it fits standard door structures commonly used in global construction projects. The internal structure features a brass cylinder paired with brass keys, providing stable security performance and long service life. The lever handle is made of zinc alloy for strength and durability, while the stainless steel rosette enhances corrosion resistance and maintains a clean appearance over time. Multiple rosette sizes and finish options allow flexible matching with different architectural styles and project requirements.
| Product Model | DDLK005 |
| Cylinder + Keys | Brass |
| Lever | Zinc Alloy |
| Rosette | Stainless Steel |
| Rosette Diameter | 65mm, 75mm |
| Finish | SSS, AB, AC, PB, US10B |
| Suitable For Door | Flush Timber / Wooden / Aluminium / Steel Doors |
| Mechanism Option | Tubular Type, Cylindrical Type |
| Door Thickness | 1-3/8" to 1-3/4" (35mm to 45mm) |
| Backset | Adjustable 2-3/8"(60mm),2-3/4"(70mm) |
| 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 |
1. Brass Cylinder for Smooth Operation
Cylindrical Lever Lock is equipped with a brass cylinder and keys, providing precise processing performance and reliable daily operation for commercial and residential door applications. The brass cylinder structure helps maintain smooth key insertion and rotation during frequent use. With Tubular Type and Cylindrical Type mechanism options available, the lock can be configured according to different project requirements and installation conditions.
2. Zinc Alloy Lever for Multiple Door Types
This Cylindrical Lever Lock features a Zinc Alloy Lever design that offers comfortable handling and consistent operating performance. The lever structure is suitable for various door applications, including flush timber, wooden, aluminium, and steel doors. Its practical design allows contractors and distributors to apply the lock solution across different building projects while maintaining convenient installation and user-friendly operation.
3. Stainless Steel Rosette with Finish Options
Cylindrical Lever Lock adopts a stainless steel rosette available in 65mm and 75mm diameter options, allowing buyers to select suitable specifications according to door designs. The product supports multiple surface finishes including SSS, AB, AC, PB, and US10B, making it suitable for hotels, offices, residential buildings, and commercial spaces with different architectural styles and interior requirements.
4. Flexible Dimensions for Project Installation
This Cylindrical Lever Lock supports door thicknesses from 35mm to 45mm and features an adjustable backset design with 60mm (2-3/8") and 70mm (2-3/4") options. The standardized dimensions help reduce installation adjustment time during large-scale projects. Manufacturers, distributors, and contractors can select suitable specifications according to different door structures and construction requirements.
5. Multiple Mechanism Options for Different Applications
Cylindrical Lever Lock provides Tubular Type and Cylindrical Type mechanism choices to meet various security requirements and usage environments. The modular component design ensures smooth coordination between cylinder, lever, and rosette parts. It is suitable for hotels, office buildings, apartments, and residential projects. D&D Hardware also supports OEM customization based on project specifications.
1. Hotel Guest Room Doors
Hotel projects require door hardware that combines practical operation, appearance, and reliable performance. Cylindrical Lever Lock is suitable for guest room wooden doors and aluminium doors, with multiple finish options available to match different interior styles. Its standardized specifications support efficient installation for hospitality projects requiring large-volume door hardware solutions.
2. Office Building Doors
Office buildings require large quantities of door locks for meeting rooms, private offices, and internal areas. Cylindrical Lever Lock is suitable for wooden doors, steel doors, and aluminium doors used in commercial workplaces. Adjustable backset options provide installation flexibility, helping contractors complete door hardware projects efficiently while maintaining a consistent appearance throughout the building.
3. Apartment Residential Projects
Residential developments require reliable door hardware solutions for different living spaces. Cylindrical Lever Lock can be applied to apartment entrance doors, bedroom doors, and interior functional areas. The combination of brass cylinder keys, zinc alloy lever, and multiple finish choices allows developers and distributors to provide suitable locking solutions for different housing projects.
4. Commercial Renovation Projects
During commercial building renovation, door hardware needs to support replacement efficiency and updated appearance requirements. Cylindrical Lever Lock is suitable for shopping centers, restaurants, public facilities, and other renovation applications. Its flexible specifications and multiple finish options help construction teams upgrade existing door systems with easier installation and better project compatibility.


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.