Class 8 nuts are comparable in strength to Class 8.8 bolts and are suitable for fastening most machinery and equipment.

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

These metric nuts meet JIS (Japanese Industrial Standard) B 1181.

About 25% stronger than medium-strength steel nuts, these nuts are comparable in strength to class 10.9 bolts.

These nuts come with a traceable lot number and a physical and chemical test report.

About half the strength of medium-strength steel nuts, these nuts are for light duty 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.

These Class 10 nuts are about 25% stronger than medium-strength steel extra-wide hex nuts.

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 are about 25% stronger than medium-strength steel thin hex nuts. Available in inch thread sizes.

A nylon insert keeps metric bolt threads from coming loose due to vibration, wear, and temperature swings. About 25% stronger than medium-strength steel locknuts, these nuts are made of high-strength, Class 10 steel.

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

Get a grip on metric bolts exposed to vibration, wear, and changes in temperature. These metric locknuts have a nylon insert that holds onto bolts without damaging their threads.

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 Grade 8 locknuts are about 25% stronger than medium-strength steel thin locknuts.

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

Also known as Keps and K Lock nuts, these locknuts have a free-spinning tooth lock washer that grips the material surface instead of threads for easy installation and mild vibration resistance.

A conical washer acts as a spring to add tension between the nut and the material surface for easy installation and mild vibration resistance. These metric locknuts have a smooth rim to resist scratching materials when tightened.

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

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

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.

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.

About half the strength of medium-strength steel locknuts, these are for light duty fastening applications, such as securing access panels.

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

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

Strong enough for use in most machinery and equipment, these medium-strength metric nuts have serrations on the underside of the flange. The serrations prevent the nuts from loosening in applications with mild vibration.

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

These flange locknuts are comparable in strength to Grade 8 bolts.

These flange locknuts have excellent resistance to chemicals and salt water. They have an irregularly shaped thread that grips the bolt for a stronger hold than nylon-insert flange locknuts.

Also known as collar nuts, these metric nuts have a flange that distributes pressure across the surface, so you don't need a washer. Made of high-strength Class 10 steel, they’re about 25% stronger than medium-strength steel flange nuts.

No need for a washer—these metric medium-strength steel nuts have a flange that distributes pressure across its surface the way a washer does. Made of medium-strength, Class 8 steel, they’re suitable for fastening most machinery and equipment.

Made to Japanese Industrial Standards, these nuts fasten most Japanese machinery and equipment without a washer.

Choose these locknuts to fasten standard metric threads. They’re Class 8 steel, so they can be used in most fastening applications.

For light duty applications, choose these metric-sized coupling nuts.

Made from Grade 8 steel, these nuts are about 25% stronger than medium-strength steel coupling nuts. Furnished in inch thread sizes.

Known for their strength, steel coupling nuts are available with a corrosion-resistant finish.

These metric nuts are about half the strength of medium-strength steel cap nuts. Use them in light duty fastening applications, such as securing access panels.

Comparable in strength to Class 10.9 bolts, these nuts are about 25% stronger than medium-strength steel cap nuts.

Brass cap nuts are corrosion resistant in wet environments and electrically conductive.

The nylon cap covers and grips the threads to resist loosening.

Brass panel nuts are corrosion resistant in wet environments and electrically conductive.

Attach these metric slip-on nuts at any point on a threaded rod for quick installation.

A hex-shaped barrel allows these clip-on nuts to be gripped with a wrench to hold them in place when tightening a screw. They have multiple threads for more thread engagement than low-profile clip-on nuts.

In addition to joining male- and female-threaded parts, these adapters can increase or decrease metric thread sizes and change the thread pitch.

Connect two differently sized male-threaded parts, such as threaded rods, and tighten with a standard wrench.

Adapt threaded rods from inch to metric. These adapters connect two male-threaded fasteners, so you can change the gender of a mating part or increase or decrease its thread size. The hex-shaped body fits into the head of a standard wrench.

Twist these adapters onto female metric threads to change pitch or switch thread sizes.

One side inch, one side metric, and a hex in the middle—these handy fasteners connect two female-threaded parts, such as coupling nuts, adapting from inch threads to metric. Tighten with a standard wrench.

A nylon insert grips threads to resist loosening.

Cap nuts cover and protect threads while providing a finished appearance.