Includes inch thread sizes. These Grade 8 steel locknuts are 25% stronger than our medium-strength steel nylon-insert locknuts.

Made from low-strength steel, these locknuts should be used for light duty fastening applications, such as securing.access panels.

More corrosion resistant than 18-8 stainless steel locknuts, these locknuts have excellent resistance to chemicals and salt water.

These locknuts are about half the height of standard nylon-insert locknuts. Use them in light duty low clearance applications or jam one against a hex nut to hold it in place.

These locknuts have good chemical resistance and may be mildly magnetic.

These locknuts have good chemical resistance.

These locknuts have good chemical resistance.

Comparable in strength to Grade 8 bolts, these locknuts are about 25% stronger than medium-strength steel locknuts.

These Grade 9 locknuts are about 20% stronger than high-strength steel locknuts and are often used in heavy machinery, such as earth-moving equipment.

These Grade 8 locknuts are about three times stronger than low-strength steel distorted-thread locknuts.

Use these locknuts for light duty fastening applications, such as securing access panels.

Threads at the top of these locknuts expand to grip the bolt on all sides for a stronger hold than distorted thread locknuts.

Known for their strength, these steel locknuts are cadmium plated to resist corrosion in wet environments.

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.

High-strength steel locknuts are about 25% stronger than medium-strength steel locknuts.

These nuts are about 25% stronger than medium-strength steel flange locknuts.

Grade F nuts are comparable in strength to Grade 5 bolts.