Black Pocket Door Lock Set - Privacy Handle & Recessed Latch for Wooden Doors

Pocket Door Lock Hardware Set - Privacy Handle with Hidden Pull & Recessed Latch, Fit for 1 9/16" to 2" the Thick of Wooden Doors (Square Black). Style Modern Handle Type Recessed Pull. If you are indoors, you can also lock the door so that other people can't enter the house from outside.

eBay