What kind of applications are castellated nuts typically used for?

Castellated nuts are specifically designed for use in critical applications due to their unique features that enhance the integrity and reliability of the fastening system. These nuts have slots or notches that allow for the insertion of a cotter pin or safety wire, thereby preventing the nut from loosening under vibration or dynamic loads. This characteristic makes them essential in environments where failure could have serious consequences, such as in aviation or high-stress mechanical systems.

In critical applications, ensuring that all components remain securely fastened is paramount for safety and performance. The locking mechanism provided by the cotter pin helps to maintain the required torque and prevents unintentional loosening, which is crucial in high-stakes situations. Thus, the use of castellated nuts in these settings is standard practice to enhance safety and operational reliability, aligning perfectly with their intended use.