Class 8 nuts are comparable in strength to Class 8.8 bolts and 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.

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

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

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

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 metric nuts meet JIS (Japanese Industrial Standard) B1181.

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

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

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.

Polypropylene nuts resist organic solvents and degreasing agents.

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

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

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.

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 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 of 316 stainless steel for excellent corrosion resistance—including in salt water—these nuts tighten to the left and won’t loosen from counterclockwise motion. For use in low-clearance areas, they’re half the height of standard hex nuts.

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.

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

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

A nylon insert keeps metric bolt threads from coming loose due to vibration, wear, and temperature swings. About 25% stronger than medium-strength steel locknuts, these nuts are made of high-strength, Class 10 steel.

Made from medium-strength steel with a nylon insert, these Class 8 metric locknuts are strong enough to use on most machinery and equipment that’s prone to vibration and temperature changes.

These metric locknuts have good chemical resistance.

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

With a shorter hex height than standard DIN 985 locknuts, these nylon-insert locknuts meet international ISO 10511 dimensional standards and are easy to install in tight spaces.

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.

These metric locknuts have an irregularly shaped thread at the top of the nut that grips the bolt for a stronger hold than nylon-insert locknuts.

Strong enough for use in most machinery and equipment, these medium-strength metric nuts have serrations on the underside of the flange. The serrations prevent the nuts from loosening in applications with mild vibration.

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

Metric 316 stainless steel is also known as A4 stainless steel. these flange locknuts have excellent resistance to chemicals and salt water.

No need for a washer—these metric medium-strength steel nuts have a flange that distributes pressure across its surface the way a washer does. Made of medium-strength, Class 8 steel, they’re 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.

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

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

These metric cap nuts have excellent resistance to chemicals and salt water.

These metric nuts are about half the strength of medium-strength steel cap nuts. Use them in light duty fastening applications, such as securing access panels.

These metric nylon 6/6 cap nuts are chemical resistant, nonconductive, and lightweight.

A nylon insert on these metric nuts prevents vibration from loosening them, and a domed head protects the threads at the end of the bolt from damage and debris.

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

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

These metric coupling nuts have good chemical resistance.

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

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

A smooth rounded body provides a finished look.

These metric wing nuts provide more leverage for greater torque while tightening than knurled-head thumb nuts.

Made from 18-8 stainless steel, these metric nuts have good chemical resistance and may be mildly magnetic.

Made from 316 stainless steel, these metric wing nuts have excellent chemical resistance and can be used in saltwater environments.

Made from nylon 6/6, these metric wing nuts are chemical resistant, nonconductive, and lightweight.

Made from 18-8 stainless steel, these metric thumb nuts have good chemical resistance and may be mildly magnetic.

These thumb nuts have an aluminum insert to withstand more torque than plastic thumb nuts during installation.

These metric thumb nuts have good chemical resistance. The flange distributes pressure over a large area to reduce stress on your part.

These metric thumb nuts are corrosion resistant in wet environments, electrically conductive, and nonmagnetic. The flange distributes pressure over a large area to reduce stress on your part.

Cover and protect threads in sanitary environments, such as food-processing or pharmaceutical plants.

A smooth base on these metric nuts provides more contact with the mating surface than weld nuts with projections

Weld these nuts to stainless steel surfaces.

A smooth base provides more contact with the mating surface than weld nuts with projections.

Projections on the base concentrate the weld and provide room for heat to dissipate.

Weld these nuts to uncoated steel surfaces.

Weld these nuts to stainless steel surfaces.

Weld these metric nuts to flat and uneven uncoated steel surfaces for a strong permanent hold.

You can weld these metric nuts to flat and uneven uncoated stainless steel surfaces for a strong permanent hold.

Square weld nuts have more weld points than hex weld nuts for a stronger hold. Use them on flat surfaces.

Stainless steel adhesive-mount nuts have excellent corrosion resistance in most environments.

These adhesive-mount nuts have a zinc plating for corrosion resistance in wet environments.

Press these metric nuts into a drilled or punched hole with an arbor press or similar pressure tool.

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

A flat hex head sits flush against the material surface for use in low-clearance applications.

Stainless steel press-fit nuts have excellent corrosion resistance in most environments.

These press-fit nuts have a nylon insert that grips threads to resist loosening.

Also known as broach style captive nuts, these metric nuts have good chemical resistance and may be mildly magnetic.

These press-fit nuts are tin plated to resist corrosion from chemicals and salt water.

These tools include everything you need to install press-fit nuts by hand.

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

About half the strength and two-thirds the height of medium-strength steel square nuts, use these metric nuts in light duty, low-clearance applications.

Two-thirds the height of typical square nuts and made of stainless steel, these metric nuts are designed for use in low-clearance applications in humid, damp, and washdown environments.

About twice as strong as aluminum rivet nuts, these steel rivet nuts are zinc plated for mild corrosion resistance.

The most corrosion resistant twist-resistant rivet nuts we offer, these stand up to chemicals.

These aluminum rivet nuts are one-third the weight of steel rivet nuts and have mild corrosion resistance.

About twice as strong as aluminum rivet nuts, these low-profile rivet nuts have a cadmium or tin-zinc plating for corrosion resistance.

The most corrosion resistant low-profile rivet nuts we offer, these stand up to chemicals.

These low-profile rivet nuts are one-third the weight of steel and have mild corrosion resistance.

Threads float inside the nut so you can install a screw at a slight angle to align with off-center parts. They’re also known as Riv-Float nuts.

These metric nuts have a barrel with multiple threads for secure thread engagement. Also known as U-style clip-on nuts.

Stainless steel nuts have excellent corrosion resistance in most environments.

With a slim, round profile and a slotted drive, these metric nuts work in tight spots where there's no room for a wrench to turn. Instead, tighten them from the center of the nut with a slotted screwdriver.

Steel inserts have high strength for durability.

These 18-8 stainless steel tee nut inserts have better corrosion resistance than zinc-plated steel tee nut inserts.

The most corrosion resistant tee nut inserts we offer, these inserts stand up to chemicals and salt water.

Made from brass, these inserts are nonmagnetic, mildly corrosion resistant, and electrically conductive.

These 18-8 stainless steel inserts have excellent resistance to chemicals and may be mildly magnetic.

Use these barrels with a screw you already have or pair with a different type of screw to create a custom fastener. Made from 316 stainless steel, they have excellent chemical resistance and can be used in saltwater environments.

Use these hex drive screws and binding barrels as a low-profile alternative to standard nut and bolt combinations.

These metric thumb screws have wings that provide more leverage than spade-head thumb screws for greater torque while tightening. A zinc plating provides corrosion resistance in wet environments.

Stainless steel thumb screws have excellent corrosion resistance in most environments.

Increase or decrease metric thread size from one male-threaded part to another. Commonly used to connect two differently sized threaded rods, they have a hex-shaped body, so you can tighten them with a standard wrench.

Adapt threaded rods from inch to metric. These adapters connect two male-threaded fasteners, so you can change the gender of a mating part or increase or decrease its thread size. The hex-shaped body fits into the head of a standard wrench.

Often called sleeve nuts, these thread adapters fasten parts with right-hand threads to parts with left-hand threads.

In addition to joining male- and female-threaded parts, these adapters can increase or decrease metric thread sizes and change the thread pitch.

Change inch threads to metric with these adapters, or swap metric threads for inch. An external hex lets you tighten or loosen them with a wrench.

Twist these adapters onto female metric threads to change pitch or switch thread sizes.

One side inch, one side metric, and a hex in the middle—these handy fasteners connect two female-threaded parts, such as coupling nuts, adapting from inch threads to metric. Tighten with a standard wrench.