Recommended to pair with a rose/escutcheon 2'' or larger to cover adaptor

Compatible with all 1 1/2'' bored doors allowing for Estate knob installations.

Baldwin''s 1 1/2'' knob adaptor is compatible with the 5540 adjustable latch.

Works with full dummy, passage, and privacy functions.

Adaptors Allow for optimum knob performance, alleviating vertical wobble.