Sliding Barn Door locking latch to ensure privacy for bathroom doors. This will keep the door from being pushed to either side when closed. Be sure to leave a few inches of door on each side so noone will catch an unintended glimpse. Don't install latch on the edge of the door. Also the door needs a notch to open the door from the inside.
Hand-Forged Iron Cabin Door Hook Latch. These are so popular here in the UK, hand forged and used in most homes that are sympathetically old. We live in a converted barn and all our latches, fittings are similar to this. KMW