The FC cylindrical commercial door lever is recommended for moderate traffic applications. Conforms to ANSI/BHMA A156.2, series 4000, Grade 2 cULus listed, 3 hr fire rating ANSI/UL 10C Positive Pressure Rated Meets ADA requirements 1 Year limited warranty For doors 13⁄8 – 13⁄4″ (35 – 44.5 mm) thick Non-handed 23⁄4″ (70 mm) backset 23⁄8″ (60 mm) backset available Stainless steel spring latch with 1⁄2″ (12.7 mm) throw Removable security posts Functions with lever clutch release available 35⁄16″ (84.5 mm) rose diameter Concealed mounting plate and screws ASA strike and dust box Keyed functions include 6-pin cylinder, Schlage “C” keyway with 2 keys Full keying services available. Other common and high security keyways available.