a rotatably adjustable two magnet door latch system is presented . ferro magnetic latching means are normally coupled to the edge of a door stop . a multi - part door latch assembly is coupled to the edge of the door adjacent the stop when the door is closed . the assembly comprises a first thin magnet having a straight edge and an opposite concave edge . a second generally planar thin magnet has a first convex edge of radius equal to and fitting into the concave edge of the first magnet . rotating means rotate the second magnet . magnetic flux is a function of the length of arcs of the magnets that are adjacent . one or more flux plates transmit flux from the magnets to the stop and a housing modularizes the assembly for easy installation and protection against dirt .