Description
(KT2175). Light-duty commercial passage ball knob. Satin stainless steel (US32D) finish. Performance complies with ANSI A156.2 (American National Standards Institute), Series 4000, Grade 2 (400,000 cycles). UL (Underwriters’ Laboratories) listed for 3 hour fire door. Door range: 1-3/8″ to 1-3/4″. Backset: Adjustable 2-3/8″ to 2-3/4″ standard. Strike: T strike (1-1/8″ x 2-3/4″) standard. Tubular construction. Latchbolt operated by interior or exterior.
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