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 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.

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

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.

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

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.

Often used to fasten parts in engines and turbines, 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.

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

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

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

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.

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

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

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.

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

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

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

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

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

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 have good chemical resistance and may be mildly magnetic.

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

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 should be used for light duty fastening applications, such as securing access panels.

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

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.

These nuts are comparable in strength to Grade 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 have good chemical resistance.

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

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.

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

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.

These nuts are often used in conjunction with an extra-wide hex nut to fasten Grade 9 bolts in heavy machinery, such as earth-moving equipment.

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

Stainless steel nuts have excellent corrosion resistance in most environments.

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

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.

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

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

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.

Plastic coupling nuts are chemical resistant, nonconductive, and lightweight.

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