Project Details Compatible with door thickness of 1-3/8 in. to 1-3/4 in. Adjustable latch fits 2-3/8 in. to 2-3/4 in. backsets Handleset operates by key on exterior or turn button on interior Compatible with E-series knob/lever as interior 2 keys included Meets ANSI Grade 2 standards Easy installation with just a screwdriver