Reliable performance and consistent durability define this Tubular Lever Lockset, a heavy duty door locking solution suitable for both residential and commercial applications. The structure combines solid zinc alloy die-cast lever handles and rosettes, ensuring long-term strength and resistance to daily wear. With a high-quality brass cylinder and precision brass keys, it delivers stable locking performance and enhanced security over extended use cycles. This lockset supports a wide range of wooden and metal doors, with adjustable backset options that improve installation flexibility across different door structures. Tested to meet ANSI Grade 3 standards and exceeding 200,000 operation cycles, it offers dependable functionality for projects requiring consistent quality and supply reliability. Each set includes a complete installation solution with latch, striking plate, fixing materials, and manual, allowing efficient assembly and reduced installation time.
| Product Model | DDLK017 |
| Material | Solid Zinc Alloy + Brass |
| Finish | Satin Stainless Steel, Polished Stainless Steel, Polished Brass, Matt Black, Physical Vapor Deposition, Antique Brass, Antique Copper |
| Suitable For Door | Wooden door, Metal door, Interior door, outer door etc. |
| Mechanism Option | Tubular Typee |
| 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 |

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.