Abstract: An adjustable, flush mounted, over-center hook latch of the type employed to secure aircraft panels. The effective length of the latch arm is adjustable to correct misalignment of the components joined by the latch by moving the pivot axis of the latch arm relative to the fulcrum axis of the latch handle. This is accomplished by a pair of cooperating yoke members, one of which is mounted about the pivot axis and the other about the fulcrum axis and are slidable relative to each other by a driver. By the particular arrangement of the parts, the latch can be adjusted when installed and in its closed position by the driver being engaged with a conventional drive tool extending through a small opening in the latch handle.