Cage nuts  allow you to mount and  install a rack of equipment in the square holes that rack rails, data cabinets, and other networking enclosures sometimes have.   Cage Nuts are also sometimes called caged nuts and they consist of a square nut with spring steel that allows the nut to be mounted in a rack rail; then the screw can be screwed into the nut.   FEATURES

• Standard square nut for Cbinets & Racks
• Square hole Clip, Plastic Bezel & M6 Screw
• 50pcs (50 screws, 50 Bezels & 50 cage nuts)