LF-Series cylindrical lever locks are designed for high traffic applications. Unique cold-rolled steel spindles with tand up to 1000 inch-pounds of torque and the lever is compliant with ADA and other accessibility codes. Compatible with many retrofit cylinders such as LSDA C500, Ilco, GMS and most High-Security brands including Medeco, Assa, Schlage Primus, Kaba Peaks, etc.