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

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

Also kown as heavy hex nuts, these nuts are about 10% wider and taller than standard hex nuts to distribute load over a large area.

Made from Grade 5 steel, these inch-sized locknuts are suitable for fastening most machinery and equipment.

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.

About two-thirds the height of standard steel-insert locknuts, use these locknuts in low-clearance applications or jam one against a hex nut to hold it in place.

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