Cage nuts, also known as captive nuts or clip nuts, are a type of fastener used to secure screws or bolts in place, particularly in thin materials such as sheet metal or plastic. These innovative components consist of a nut held within a spring-loaded cage, which allows for easy insertion and removal of the screw or bolt without the nut falling out. This design feature makes cage nuts ideal for applications where space is limited or accessibility is restricted, such as in electronics, automotive, or aerospace industries. By providing a secure and convenient fastening solution, cage nuts have become an indispensable component in modern manufacturing and engineering.