UNC Aerotight Nuts

UNC Aerotight nuts are precision-engineered self-locking nuts designed to prevent loosening under vibration or dynamic loads. Unlike conventional nuts, Aerotight nuts feature an all-metal locking design that provides a consistent locking action without the need for nylon inserts, spring washers, or chemical thread locking compounds. This makes them ideal for environments where temperature fluctuations, vibration, or frequent maintenance could otherwise cause a standard fastener to loosen.

The UNC (Unified Coarse) thread form makes these nuts suitable for use with imperial-threaded bolts and studs, commonly found in automotive, aerospace, defence, marine, and heavy machinery applications. Their durable, reusable design ensures a secure joint even after multiple assemblies, offering excellent long-term reliability and reduced downtime.

P type = thick, T type = thin

View our UNC bolt range here

View our Imperial washers here

More coating guidance here 

All Available Sizes & Types