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

These nuts have good chemical resistance and may be mildly magnetic. Metric 18-8 stainless steel is also known as A2 stainless steel.

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 have good chemical resistance and may be mildly magnetic.

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

Often used to fasten parts in engines and turbines, these nuts are comparable in strength to Grade 8 steel.

Hardened for added strength, these nuts are more corrosion resistant to chemicals and salt water than 18-8 stainless steel nuts.

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

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

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

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.

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

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

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

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

These nuts are corrosion resistant in wet environments, electrically conductive, and nonmagnetic.

These metric nuts are corrosion resistant in wet environments, electrically conductive, and nonmagnetic.

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.

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.

For use in wet environments, acetal nuts resist alcohol, gasoline, and solvents.

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.

One-third the weight of steel, these aluminum nuts are corrosion resistant in wet environments and nonmagnetic.

These nuts are resistant to salt water, electrically conductive, and nonmagnetic.

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

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

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

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

Useful in low-clearance applications, these metric nuts are roughly half the height of standard hex nuts, but aren’t as strong. All are 18-8 stainless steel, which is nearly as strong as steel but won’t rust in outdoor, washdown, and other corrosive environments.

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

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

These metric nuts are made of 316 stainless steel and half as tall as regular hex nuts—use them around chemicals and salt water when space is limited.

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

Half as thick as regular hex nuts, these nuts fit into spaces with low height clearances. They are about half as strong as medium-strength steel, and are often used for light duty applications, such as securing access panels.

These nuts tighten when turned to the left; once fastened, they resist loosening from counterclockwise motion. They’re Grade 2 steel, so they can be used for fastening panels and other light duty fastening applications

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

These nuts are corrosion resistant in wet environments, electrically conductive, and nonmagnetic.

Bronze nuts are stronger and more resistant to salt water than brass nuts.

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

50% taller than standard hex nuts, these metric nuts provide a larger gripping area for installation with a wrench.

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

Able to maintain their strength in high-pressure and high temperature environments, these nuts are used with ASTM A193 bolts to fasten pressure tanks, valves, and flanges.

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.

Comparable in strength to Class 12.9 bolts.

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

More corrosion resistant than 18-8 stainless steel nuts, these nuts can be used in saltwater environments.

Bronze nuts are stronger and more resistant to salt water than brass nuts.

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

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

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.

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

These locknuts have a curved washer that acts as a spring for easy installation and mild vibration resistance. The smooth rim makes them less likely to scratch materials when tightened than locknuts with a tooth lock washer.