The VSH Shurjoint Model M07 is a ready to install rigid coupling for general piping applications where rigidity is required. The M07 includes two identical housing segments and a fully constrained wedge. Proper installation requires the tightening of only one bolt/nut. As this bolt/nut is tightened, the wedge applies uniform compression to the gasket. The hinge bolt/nut is factory pre-set and requires no adjustment.