These nuts tighten when turned to the left; once fastened, they resist loosening from counterclockwise motion.

Choose these nuts for their adherence to strict military standards for material and construction.

These nuts tighten when turned to the left; once fastened, they resist loosening from counterclockwise motion. They’re Grade 5 steel, so you can used these inch-sized nuts for most fastening applications.

These nuts tighten when turned to the left; once fastened, they resist loosening from counterclockwise motion.

Titanium locknuts have a high strength-to-weight ratio and are resistant to acids and salt water.

Also known as castle nuts, secure these nuts by inserting a cotter pin or safety wire through the slots and a drilled hole in your bolt for mild loosening resistance.

When installed, the steel insert grips the threads and lifts away from the nut body, isolating the insert from the nut's load to resist spinoff caused by vibration.

These flange locknuts have serrations that grip the material surface instead of the threads for easy installation and mild vibration resistance.

These Grade 5 square nuts are suitable for fastening most machinery and equipment.

Made from Grade 5 steel, these inch-sized coupling nuts are suitable for most applications.

These Grade 5 cap nuts are suitable for fastening most machinery and equipment.