These nuts are suitable for fastening most machinery and equipment.

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

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

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.

These metric nuts meet JIS (Japanese Industrial Standard) B1181.

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

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

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 nuts.

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 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.

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

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

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

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

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

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

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

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

These metric nuts meet JIS (Japanese Industrial Standard) B1181.

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

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

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

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

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

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.

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

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

Made from nylon 6/6, these nuts resist oil, grease, and solvents (except mineral acids).

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.

PTFE nuts withstand temperatures up to 500° F. They resist oil, grease, detergents, and most mineral acids. They're the lowest friction plastic nuts we offer, so they thread on smoothly.

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.

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

PVC nuts resist acids, alkalies, salt solutions, and alcohol.

Glass-filled nylon nuts are stronger than nylon 6/6 nuts. They resist oil, grease, and solvents (except mineral acids).

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

Polypropylene nuts resist organic solvents and degreasing agents.

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.

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

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

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

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

These nuts have a high strength-to-weight ratio and resist acids and salt water.

These metric nuts have a high strength-to-weight ratio and resist acids and salt water.

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

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

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

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 are half the height of standard hex nuts, and have closely spaced threads to prevent loosening from vibration. Half as strong as medium-strength steel nuts, they are often used for light-duty applications, such as fastening signs in place.

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.

Made from Grade 2 steel, these nuts should be used for light duty fastening 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 have good chemical resistance and may be mildly magnetic.

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.

Made with fine-pitch threads, vibration is less likely to loosen these metric nuts than those with coarse-pitch threads since the threads sit closer together. Also called jam nuts, they are roughly half the height of standard hex nuts, so they’re good for applications with low clearance.

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

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

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

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.

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

Made from brass, these metric nuts are corrosion resistant in wet environments, electrically conductive, and nonmagnetic. About half the height of standard hex nuts, they are useful in low-clearance applications but have less tensile strength.

Plastic nuts are chemical resistant, nonconductive, and lightweight.

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

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.

These nuts are comparable in strength to Grade 9 bolts.

Comparable in strength to Class 12.9 bolts.

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

About half the strength of medium-strength steel extra-wide hex nuts, use these nuts for light duty fastening applications, such as securing access panels.

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

These nuts have good chemical resistance.

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

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

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

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

These nuts have good chemical resistance.

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.

These 18-8 stainless steel nuts have good chemical resistance and may be mildly magnetic.

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.

Also known as small-pattern hex nuts, these are about 20% narrower than standard hex nuts for use in tight spaces where standard hex nuts won’t fit.