1、Wide Uses: Cage nut screw kit can be used for mounting rack server cabinets, server shelves and more. these cage nuts and screws are universally compatible with all square hole racks and cabinets. 2、Package Contents: The package includes 50pcs M5 cage nut, 50pcs M5x20cage screw, 100pcs in total, sufficient quantity to meet your requirements. 3、High Quality Material: Rack mount cage nuts and screws are made of premium iron material, nickel plated treatment, wearproof, sturdy and durable in use. 4、Easy to Carry: This cage nuts and screws set comes with a storage box, which is more convenient for you to store and carry, suitable for marine, yacht, RV. 5、High Quality: Professional manufacturing, strictly follows the factory quality control, cage nuts screws have high performance, strong reliability, making sure safety use.