Lever style keyed classroom function lock with BumpStop® - commercial. Brushed chrome finish. For Classroom application - Either lever operates deadlocking latchbolt unless outside lever is locked by key. Inside lever is always active. Key unlocks outside lever. BumpStop® technology - Bump resistant cylinder. Cylindrical construction for enhanced durability. Six pin Schlage C compatible cylinder standard - Can be special ordered to 24 different keyways. 2-3/4 in fixed backset latch. 3 hr UL listing. Removable thru-bolts. Clutch feature. Meets ANSI/BHMA A156.2, Grade 2 Standards. Box packaging, master carton quantity 8. Master Lock® Cylindrical Lever Lockset, Commercial Grade, Series: SLC, Medium Duty Lockset Performance Strength, Lockset Function: Classroom, T-Strike Strike, 2-3/4 x 1-1/8 in Strike Dimension, Grade: 2, 2-3/4 in Backset, 6 Pins, 2 Keys, Alike Keying, Schlage C Keyway, For Door Thickness: 1-3/8 to 1-3/4 in, Steel Handle, Polished Chrome/Brushed