Stainless Steel Cage Nut consists of a square nut in a spring steel cage which wraps around the nut. The Nut has a Cage along with two wings that allow the cage to be inserted into the square holes in equipment racks [when compressed] and when released hold the nut in position behind the hole. The Cage Nut is made using quality grade stainless steel to ensure optimum performance for longer period of time. Stainless Steel Cage Nut is usually slightly loose in the cage to allow for minor adjustments in alignment.