Mechanical, Lever, Cylindrical, Lockset Function Dummy, Lockset Grade 1, Style Boston, Lockset Finish Satin Chrome, Keyway Type None, Key Type Not Keyed, Standards ANSI A156.2, Grade 1, No, Lockset Fire Rating 3 hr, Backset 2 3/4 in, Ligature No, Cylinder Core Type Not Included, For Use With Wood, Steel Doors, Handle Material Zinc, Item Lever Lockset, Location Type Commercial, Lockset Performance Strength Heavy Duty, Required Door Thickness 1-3/4 in to 2-1/4 in