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 meet JIS (Japanese Industrial Standard) B 1181.

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

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

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

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

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. 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.

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

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.

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

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

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

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.

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.

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

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

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

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

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

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

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.

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 have good chemical resistance and may be mildly magnetic.

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 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.

These nuts tighten to the left and won’t loosen from counterclockwise motion.

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

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

Comparable in strength to Class 12.9 bolts.

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

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.

These nuts have good chemical resistance.

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

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.

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

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.

These metric locknuts have a free-spinning tooth lock washer that grips the material surface instead of threads for easy installation and mild vibration resistance.

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

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.