The DVC.2-30-22-20-M8-20-40 is a handwheel spindle coupling part from Elesa & Ganter. It is designed for applications such as adjusting machine settings, tensioning cables, and other manual operations in industrial installations. The coupling has a black plastic locking ring, and has a zinc-plated steel construction. It has a spindle length of 30 mm, an inner diameter of 22 mm, an outer diameter of 20 mm, an M8 thread size, a 20 mm bore, and a 40 mm base diameter.