S. Parker B9160A32D Satin Chrome 32D Grade 2 Entrance Entry Ball Knob Cylindrical Lockset, outside knob rigid, Entry by key only. inside knob button, FOR DOORS: 1-3/8" to 1-3/4" thick CASE: Corrosion treated heavy gauge cold roiled mechanism FRONT: Wrought Brass or Bronze 2-1/4" x 1-1/8" STRIKE: Wrought Brass or Bronze 4-1/8" x 1-1/4" standard LATCHBOLT: Brass 1/2" throw, adjustable front for flat or beveled doors 1-3/8" x 2" KEYING: 2 keys per lock FINISH: 32D UL LISTING: UL Listed for "A" Label (3 hours) single swing doors (4'x9') CERTIFICATION: Conforms with ANSI A156.2, Series 4000, Grade 2 Complies with provision of title 19, California State Fire Marshall.