Abstract: An adjustable latch bolt mechanism is mountable on a door for aligning a latch bolt with an opening in a strike plate on a facing door jamb. The latch bolt mechanism comprises a latch body movable in one direction to a normal extended position causing a latch bolt supported by and slidably mounted at one end of the latch body to engage the opening in the strike plate. A coupling mechanism couples the latch bolt to the latch body for slidably adjusting the latch bolt for movement in a direction transverse to the one direction to a selected position in which the latch bolt is in alignment with the strike plate opening.