The CL3100 Series is an ANSI/BHMA Grade 1 lever lockset manufactured with the highest quality materials to ensure strength, durability, and quiet operation. Available in all standard architectural finishes, the CL3100 Series subtly complements any high-use commercial, industrial and institutional application. Plus, designed to withstand abusive environments, the CL3100 Series features our unique torque-resistant T-Zone construction and provides strength and durability far exceeding the ANSI/BHMA Grade 1 standards.