How Can Schools Ensure Long-Term Reliability in High-Traffic Door Hardware?

Our HLM-01 cylindrical lever lock is specifically engineered for educational environments with proven 800,000 cycle durability and a comprehensive 6-year warranty. With simple installation and multiple function options, facility managers can reduce maintenance costs while ensuring consistent security across campus buildings. Contact us to discuss volume pricing and customized keyway configurations for your institution's specific security requirements.

Manufactured in Taiwan with precision engineering, our HLM-01 offers simple installation on doors ranging from 1-3/4" (44mm) to 2" (51mm) thickness, with versatile finish options including polished brass, satin brass, antique brass, satin bronze, oil rubbed bronze, satin nickel, polished chrome, and satin chrome. The reversible design accommodates both left and right-handed applications, streamlining inventory management and installation processes. As a professional building hardware manufacturer, D&D Builders Hardware Co. combines reliable quality with stable performance, making the HLM-01 the ideal choice for contractors, facility managers, and building professionals seeking commercial-grade door security solutions that deliver consistent results across diverse institutional settings.