Tell Manufacturing Empire Series CL100008 Entry Ball Knob, Steel, Satin Chrome

Commercial, Tubular Grade 2, entry knob, US32D Satin Stainless Steel finish, complies with ANSI A156.2, 400, 00 cycles, non-handed, for use on interior or exterior wood or metal doors, 1-3/8 to 1-3/4 in thick, latch 1 in x 2-1/4 in, square corner, 3/4 in housing diameter, 1/2 in Throw, backset adjustable for 2-3/8 to 2-3/4 in strike, 1-1/8 in x 2-3/4 in x 3/32 in T Strike, use 2-1/8 in Dia hole for knob and 1 in Dia hole for latch bolt, fits standard 161 Door Prep, Schlage C Keyway, UL listed for 3 hrs fire door, includes 2 nickel silver keys.