5400LN Grade 1 Cylindrical Lever LocksDesigned for industrial, commercial, and institutional settings.Designed for industrial, commercial and institutional use, this heavy-duty grade 1 cylindrical lockset offers no compromise when it comes to rugged reliability and performance. ? Free Wheeling lever mechanism increases vandal resistance and reduces the amount of maintenance typically required of locksets with rigid levers.? 13 finish options.? 3 lever designs.? 24 functions including electrified.? Stainless steel latchbolt provides added strength and wear resistance. Direct 1/2" throw is standard.? A 3/4" latch throw for fire-rated or pairs of doors is available.? Wear-resistant plates in the chassis help extend the life of the lockbody and provide smoother lock operation.? Longer thread locking through-bolts through the chassis provide greater stability and prevent rotation.? Lifetime warranted heavy-duty lever return springs prevent lever sag and provide positive return of lever to horizontal position. ? Patented (patent no. 6,131,970) door adjustable rose support plates allow for easy adjustment of lockset to fit doors ranging in thickness from 1-3/4" to 2". Rose spacers available for 1-3/8" thick doors.? Three non-handed lever options (Augusta, Monroe, and Pacific Beach) comply with ADA requirements for easy gripping and operation.? Expanded cylinder and keying options: - Yale? 6- and 7-pin standard and interchangeable core cylinders including Yale? KeyMark? protected keyway cylinders. - Standard cylinders with Schlage? C and Sargent? LA keyways. Small format interchangeable cores with Best? keyways. - Levers which accept interchangeable core cylinders by Best?, Schlage?, ASSA? and Medeco?.? 3-1/2" roses cover ANSI/BHMA hollow metal door cutout.