Free floating square nut retained within a spring steel cage.
Cage nuts are used for blind-side applications. The design of a square nut inside a spring steel cage with wings, allows it to hold its place after being inserted into a component. When the wings are released on the blind side, then cage nut is attached firmly. Often used in the electronic industry, HVAC equipment, farming machinery, and rail cars. Also known as Rack Mounting Nuts.