
Heavy-Duty Tubular Leverset Security Door Lock Zinc Alloy Handle Set Door Lock with Satin Nickel Color. Durable Zinc Alloy Construction: Made of high-quality zinc alloy die-casting for long-lasting strength and reliability. Fully Reversible Design: Suitable for both left and right hand doors with easy installation. Adjustable Backset: Latch backset adjustable from 60-70mm (2-3/8'-3-3/4') to fit various door preparations. Multiple Finish Options: Available in SN, SC, AB, AC, ORB, 10B, PVD and other finishes to match decor. 3-Year Warranty Coverage: Comprehensive 3-year warranty covering mechanical defects and material issues. ANSI Grade 3 Certified: All products meet ANSI Grade 3 safety and performance standards. Flexible Customization: OEM/ODM services available including logo, packaging, and design customization. High Production Capacity: Monthly capacity of 400,000 pieces ensures timely delivery for large orders.