Mechanical, Lever, Mortise, Lockset Function Classroom, Lockset Grade 1, Style MS Sentinel, Lockset Finish Satin Chrome, Keyway Type SC4, Key Type Different, Standards ANSI A156.13, BAA, RoHS, UL 10C Positive Pressure, Yes, Lockset Fire Rating 3 hr, Backset 2 3/4 in, Ligature No, Features Stainless Steel 1 in Deadbolt, For Use With Commercial Doors, Includes Hardware, Item Mortise Lockset, Key Material Brass