Light Duty, Commercial, Tubular Grade 2, Entry Lever, Complies With ANSI A 156,2, Series 4000, Grade 2, 400,000 Cycles, UL Listed For 3 Hour Fire Door & ANSI A117,1 American Disabilities Act, Tubular Steel Chassis, Coated With Zinc Dichromate Corrosion Resistance, Lever Is Non-Handed & Solid Cast, Latch 1" x 2-1/4" Square Corner Faceplate, 1" Housing Diameter Stainless Steel, 1/2" Throw, Adjustable Backset 2-3/4" Or 2-3/8", US26D Satin Chrome Finish, 1-1/8" x 2-3/4" x 3/32" T Strike, Use Of Doors 1-3/8" To 1-3/4" Thick, Uses 2-1/8" Diameter Hole For Lever & 1" Diameter Hole For Latch Bolt, Fits Standard 161 Door Prep, 5 Year Warranty, Includes 2 Nickel Silver Keys.