About half the strength of medium-strength steel flange nuts, use these metric nuts in light duty fastening applications, such as securing access panels.

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.

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

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

Skip the washer—these metric stainless steel nuts have a flange that does the same job, spreading pressure across its surface for a strong hold.

Fiberglass flange nuts are chemical resistant, nonconductive, and lightweight.

Stainless steel nuts have excellent corrosion resistance in most environments.

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

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.

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

Grade G nuts are comparable in strength to Grade 8 bolts.

They're about 25% stronger than medium-strength steel flange locknuts and comparable in strength to Class 10.9 bolts.

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

These flange locknuts have excellent resistance to chemicals and salt water.

Made from 18-8 stainless steel, these flange locknuts have good chemical resistance and may be mildly magnetic

Stainless steel nuts have excellent corrosion resistance in most environments.

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

These metric-sized coupling nuts are Class 10 steel, so they’re about 25% stronger than medium-strength steel coupling nuts.

The left-hand threads on these coupling nuts resists loosening from counterclockwise vibration. Use in light duty applications.

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

These metric coupling nuts have good chemical resistance.

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

One-third the weight of steel, aluminum coupling nuts resist corrosion in wet environments.

Stainless steel coupling nuts have excellent corrosion resistance in most environments.

A smooth rounded body provides a finished look.

Closely spaced metric threads prevent these nuts from loosening due to vibration. 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.

Tighten these nuts by turning them to the left; once fastened, they resist loosening from counterclockwise motion.

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

These metric nuts are about 20% stronger than high strength steel nuts and are often used in heavy machinery.

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

These nuts are about 20% stronger than high strength steel nuts and are often used in heavy machinery.

These nuts 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.

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

Tighten these nuts by turning them to the left; once fastened, they resist loosening from counterclockwise motion.

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 have excellent chemical resistance and can be used in saltwater environments.

The most corrosion resistant stainless steel nuts we offer, these nuts resist chemicals and acids in harsh environments.

Commonly used to fasten structural parts and pumps, these nuts are comparable in strength to Grade 8 steel.

Comparable in strength to Grade 5 steel and as resistant to chemicals and salt water as 316 stainless steel.

These nuts resist sticking during installation and are comparable in strength to Grade 5 steel.

Polycarbonate nuts stand up to oil, grease, and detergents.

Commonly used in valves, pumps, and shafts, these 400 nickel nuts resist salt water and caustic chemicals.

These metric nuts resist oil, grease, and solvents (except mineral acids).

Fiberglass nuts are stronger than nylon 6/6 nuts. They resist acids, solvents, salt water, and oil.

More corrosion resistant than 400 nickel nuts, these nuts are often used in marine environments and chemical-processing plants.

PEEK nuts are often used as an alternative to metal hex nuts. They withstand temperatures up to 550° F and resist acids, bases, and salt solutions.

Ceramic nuts won't melt, seize, or become brittle—even at temperatures up to 3000° F.

Stronger than PTFE nuts and resistant to solvents, bases, and acids—including hydrochloric and nitric acid—these PVDF nuts are often used in chemical processing equipment.

These brass nuts resist rusting from water and have closely spaced threads to prevent loosening from vibration.