This aluminum panic bar complies with ANSI A156.3, 1994, grade 1, UL listed. Made for door range: thickness 1 3/4" to 2", door width 28" to 36"; backset: 2 3/4"; and strike: 416 strike and exterior blank pull included. Inside trim knob (EX100010) available by special order. Inside trim lever (EX100005) available by special order.