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

Once tightened to the left, these metric nuts resist loosening from counterclockwise motion.

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. About 10% wider and taller than standard hex nuts, these heavy hex nuts distribute the load over a large area.

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

These locknuts have an irregularly shaped thread at the top of the nut that grips the bolt for a stronger hold than nylon-insert locknuts.

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 flange nuts are suitable for fastening most machinery and equipment.

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

These metric wing nuts provide more leverage for greater torque while tightening than knurled-head thumb nuts.

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