Thumbturn Mortise Cylinder | Top Supplier of Deadlocks and Security Door Hardware

D&D Builders Hardware Co., a premier Taiwanese manufacturer, specializes in high-quality hardware solutions, including Thumbturn Mortise Cylinder, door closers, exit devices, glass hardware, door locks, hinges, handles, and access control systems. Renowned for their innovation and quality, D&D products are crafted to enhance security, functionality, and aesthetic appeal in residential and commercial applications. With a commitment to safety and compliance, their UL-certified products ensure reliable performance and long-lasting durability. D&D Builders Hardware Co. continues to lead the market with cutting-edge designs and comprehensive door and window solutions.

D&D Builders Hardware Co. excels in providing exceptional service through comprehensive hardware solutions for doors and windows. Their dedication to customer satisfaction is evident in their tailored support, expert guidance, and extensive after-sales service. Offering a wide range of high-quality products, including door closers, exit devices, glass hardware, and access control systems, D&D ensures every client receives reliable, innovative, and secure solutions. Their commitment to excellence and industry standards positions them as a trusted partner in both residential and commercial sectors.

D&D has been offering customers high-quality door hardware manufacturing, both with advanced technology and over 20 years of experience, D&D ensures each customer's demands are met.