Abstract: A gate fastening latch system comprising: a housing; two fasteners; vertical slide slots comprising guides (guiding movement relative); and a striker body assembly including a striker bolt and a securing plate assembly having threaded receivers. The housing includes a front face; a rear face; a top face; a bottom face; a left face; a right face; a top lug; a bottom lug; and an inner volume. The front face; rear face; top face; bottom face; the left face; the right face, and the inner volume define confines of the housing. Further, the top face; the bottom face; the left face; and the right face form a boxed structure frame to surround and maintain the inner volume. The gate fastening latch system provides that the swinging gate is able to be repeated coupled to a latch body on a structure via the striker bolt; the system being adjustable.