About Nuts, Materials, and Finishes
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T-Slotted Framing Fasteners
Screw and nut sets or nuts secure brackets and other accessories to rails.
End-feed fasteners slide into the end of the rail to attach components. They form stronger connections than drop-in fasteners because more surface area touches the rail.
For technical drawings and 3-D models, click on a part number.
Use double and triple nuts to install brackets with multiple holes. They eliminate the need for a single nut and screw for each hole.
Offset nuts have a mounting hole close to one end, so you can install them next to corners and rail ends.
18-8 Stainless Steel Tee Nut Inserts for Wood
These 18-8 stainless steel tee nut inserts have better corrosion resistance than zinc-plated steel inserts. They have four prongs on the flange to resist twisting in hardwood and softwood. Hammer them into a drilled hole to install. Installed length includes the flange.
For technical drawings and 3-D models, click on a part number.
Barrel | Flange | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Installed Lg. | Dia. | Lg. | Dia. | Thick. | Drill Bit Size | For Max. Hole Dia. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||||||
8-32 | 0.288" | 0.213" | 1/4" | 1/2" | 0.038" | 7/32" | 7/32" | 10 | 000000000 | 00000 |
316 Stainless Steel Tee Nut Inserts for Wood
The most corrosion resistant tee nut inserts we offer, these inserts stand up to chemicals and salt water. They have four prongs on the flange to resist twisting in hardwood and softwood. Hammer them into a drilled hole to install. Installed length includes the flange.
For technical drawings and 3-D models, click on a part number.
Barrel | Flange | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Installed Lg. | Dia. | Lg. | Dia. | Thick. | Drill Bit Size | For Max. Hole Dia. | Pkg. Qty. | Pkg. | |
316 Stainless Steel | ||||||||||
8-32 | 0.288" | 0.213" | 1/4" | 1/2" | 0.038" | 7/32" | 7/32" | 10 | 000000000 | 000000 |
Split-Resistant Tee Nut Inserts for Hardwood
Fewer prongs than other tee nut inserts reduce the risk of splitting hardwood—these inserts have three short prongs. Hammer them into a drilled hole to install. Installed length includes the flange.
Zinc-plated steel inserts are mildly corrosion resistant in wet environments.
Black-oxide steel inserts have a dark surface color and are mildly corrosion resistant in dry environments.
For technical drawings and 3-D models, click on a part number.
Barrel | Flange | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Installed Lg. | Dia. | Lg. | Dia. | Thick. | Drill Bit Size | For Max. Hole Dia. | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | ||||||||||
8-32 | 0.281" | 0.209" | 1/4" | 23/32" | 0.031" | 7/32" | 7/32" | 100 | 000000000 | 00000 |
8-32 | 0.289" | 0.22" | 1/4" | 1/2" | 0.039" | 7/32" | 7/32" | 100 | 000000000 | 0000 |
8-32 | 0.297" | 0.22" | 1/4" | 19/32" | 0.047" | 1/4" | 1/4" | 100 | 000000000 | 0000 |
Black-Oxide Steel | ||||||||||
8-32 | 0.281" | 0.209" | 1/4" | 23/32" | 0.031" | 7/32" | 7/32" | 50 | 000000000 | 00000 |
8-32 | 0.289" | 0.22" | 1/4" | 1/2" | 0.039" | 7/32" | 7/32" | 50 | 000000000 | 0000 |
Ultra-Split-Resistant Tee Nut Inserts for Hardwood
Ridges on the barrel of these inserts make them less likely to split hardwood than inserts with prongs. They're often used in wood that has been cut across the growth rings. Hammer them into a drilled hole to install. Installed length includes the flange.
Zinc-plated steel inserts are mildly corrosion resistant.
Black-oxide steel inserts have a dark surface color and are mildly corrosion resistant in dry environments.
For technical drawings and 3-D models, click on a part number.
Steel Low-Profile Narrow-Base Weld Nuts
With a slim base and a short barrel, these weld nuts fit in tight spaces, such as channels, and in low-clearance areas. Weld nuts stand up to high torque and pull force better than rivet and press-fit nuts, making them the strongest way to add permanent threads to sheet metal. You can also install them onto thick pieces of metal. Made of plain steel, these nuts weld to flat, uncoated steel surfaces with minimal preparation.
For technical drawings and 3-D models, click on a part number.
Base | Barrel | ||||||||
---|---|---|---|---|---|---|---|---|---|
Thread Size | Lg. | Wd. | Thick. | Dia. | Ht. | For Hole Dia. | Pkg. Qty. | Pkg. | |
Steel | |||||||||
8-32 | 7/8" | 7/16" | 3/32" | 13/64" | 1/32" | 7/32" | 25 | 000000000 | 00000 |
Stainless Steel Low-Profile Narrow-Base Weld Nuts with Projections
Projections on the base concentrate the weld and create space for heat to dissipate, protecting the threads on these weld nuts from deforming. Made of 18-8 stainless steel, they withstand mild chemicals and can be used in wet and outdoor environments. They have a slim base and a short barrel for use in tight spaces, such as channels, and in low-clearance areas. These weld nuts stand up to high torque and pull force better than rivet and press-fit nuts, making them the strongest way to add permanent threads to stainless steel sheets. You can also install them onto thick pieces of stainless steel.
For technical drawings and 3-D models, click on a part number.
Base | Barrel | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Lg. | Wd. | Thick. | Dia. | Ht. | For Hole Dia. | No. of Projections | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||||||
8-32 | 5/8" | 3/8" | 3/32" | 13/64" | 1/32" | 7/32" | 2 | 10 | 000000000 | 00000 |
Stainless Steel Low-Profile Narrow-Base Weld Nuts
With a slim base and a short barrel, these corrosion-resistant weld nuts fit in tight spaces and in low-clearance areas. Made of 18-8 stainless steel, they withstand mild chemicals and can be used in wet and outdoor environments. These weld nuts stand up to high torque and pull force better than rivet and press-fit nuts, making them the strongest way to add permanent threads to sheet metal and other flat, thin metal surfaces. You can also install them onto thick pieces of metal.
For technical drawings and 3-D models, click on a part number.
Base | Barrel | ||||||||
---|---|---|---|---|---|---|---|---|---|
Thread Size | Lg. | Wd. | Thick. | Dia. | Ht. | For Hole Dia. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||||
8-32 | 7/8" | 7/16" | 3/32" | 13/64" | 1/32" | 7/32" | 10 | 000000000 | 000000 |
Steel Low-Profile Narrow-Base Weld Nuts with Projections
Projections on the base concentrate the weld and create space for heat to dissipate, protecting the threads on these steel weld nuts from deforming. They have a slim base and a short barrel for use in tight spaces, such as channels, and in low-clearance areas. These weld nuts stand up to high torque and pull force better than rivet and press-fit nuts, making them the strongest way to add permanent threads to sheet metal. Made of plain steel, these nuts weld to uncoated steel with minimal preparation. You can also weld them onto thick metal surfaces.
For technical drawings and 3-D models, click on a part number.
Base | Barrel | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Lg. | Wd. | Thick. | Dia. | Ht. | For Hole Dia. | No. of Projections | Pkg. Qty. | Pkg. | |
Steel | ||||||||||
8-32 | 5/8" | 3/8" | 3/32" | 0.203" | 1/32" | 13/64" | 2 | 25 | 000000000 | 00000 |
Low-Profile Narrow-Base Double Weld Nuts
Add a pair of same-size threads to sheet metal while only welding once. These weld nuts are great when you need to install screws in two different, close-by locations. You can also use them to add the strength of two joints with a single nut. A slim base and a short barrel are ideal for use in tight spaces, such as channels, and in low-clearance areas. These weld nuts stand up to high torque and pull force better than rivet and press-fit nuts, making them the strongest way to add permanent threads to flat sheet metal. Made of plain steel, they weld to uncoated steel with minimal preparation. You can also weld them onto thick metal surfaces.
For technical drawings and 3-D models, click on a part number.
Steel Narrow-Base Weld Nuts
Install threads in channels and other tight spaces where round-base weld nuts won’t fit. These steel weld nuts stand up to high torque and pull force better than rivet and press-fit nuts, making them the strongest way to add permanent threads to sheet metal. They can also be welded onto thick metals and molded into plastic surfaces. In plastic, their rectangular shape keeps them from twisting.
A base that’s flat on both sides allows these nuts to be welded in two orientations: either flush on a flat surface or with the barrel sticking through a hole. Twice as long as those on low-profile weld nuts, the standard-length barrel creates greater thread engagement.
Plain steel nuts can be welded to uncoated steel with less prep than zinc-plated steel nuts.
Zinc-plated steel nuts resist rusting in wet environments better than plain steel nuts. Weld them to uncoated steel surfaces, but keep in mind this will take extra prep, such as grinding off some of the zinc plating.
For technical drawings and 3-D models, click on a part number.
Steel Narrow-Base Weld Nuts with Projections
Projections on the base of these steel nuts concentrate your weld and create room for heat to dissipate, protecting threads from deforming. Weld them to uncoated steel channels and other tight spaces where round-base weld nuts won't fit. These weld nuts stand up to high torque and pull force better than rivet and press-fit nuts, making them the strongest way to add permanent threads to sheet metal. They can also be welded onto thick metal surfaces. Their standard-length barrel is twice as long as those on low-profile weld nuts, creating greater thread engagement.
Plain steel nuts can be welded to uncoated steel with less prep than zinc-plated steel nuts.
For technical drawings and 3-D models, click on a part number.
Base | Barrel | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Lg. | Wd. | Thick. | Dia. | Ht. | For Hole Dia. | No. of Projections | Pkg. Qty. | Pkg. | |
Steel | ||||||||||
8-32 | 1/2" | 5/16" | 5/64" | 1/4" | 5/16" | 1/4" | 4 | 5 | 000000000 | 00000 |
Stainless Steel Narrow-Base Weld Nuts
Weld these nuts on flat stainless steel surfaces for a strong permanent hold. They have a long barrel for secure thread engagement. Use them in channels and tight spaces where round-base weld nuts won't fit.
For technical drawings and 3-D models, click on a part number.
Base | Barrel | |||||||
---|---|---|---|---|---|---|---|---|
Thread Size | Lg. | Wd. | Thick. | Dia. | Ht. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||||
8-32 | 3/4" | 1/2" | 3/64" | 7/32" | 1/4" | 10 | 000000000 | 00000 |
Stainless Steel Narrow-Base Weld Nuts with Projections
Projections on the base of these nuts concentrate your weld and create room for heat to dissipate, protecting threads from deformation. Made of 18-8 stainless steel, these nuts withstand mild chemicals and can be used in wet and outdoor environments. They’re narrow at the base, so they fit in channels and other tight spaces where round-base weld nuts won’t. These weld nuts stand up to high torque and pull force better than rivet and press-fit nuts, making them the strongest way to add permanent threads to sheet metal. They can also be welded onto thick metal surfaces. Their standard-length barrel is twice as long as those on low-profile weld nuts, creating greater thread engagement.
For technical drawings and 3-D models, click on a part number.
Base | Barrel | ||||||||
---|---|---|---|---|---|---|---|---|---|
Thread Size | Lg. | Wd. | Thick. | Dia. | Ht. | No. of Projections | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||||
8-32 | 1/2" | 5/16" | 5/64" | 1/4" | 5/16" | 4 | 5 | 000000000 | 000000 |
Steel Offset-Barrel Narrow-Base Weld Nuts
An offset barrel allows you to position threads near edges and corners. Use these nuts to add strong, permanent threads to uncoated steel sheet metal or thick uncoated steel surfaces. With a narrow base, they fit in channels and other tight spaces where round-base nuts do not. They have a short barrel, so they fit in low-clearance areas, too. They stand up to more torque and pull force than rivet nuts.
Uncoated steel weld nuts require minimal preparation before welding.
Zinc-plated steel weld nuts resist corrosion in wet environments. They require some preparation before welding, such as grinding off the plating from the part of the nut you intend to weld.
For technical drawings and 3-D models, click on a part number.
Stainless Steel Offset-Barrel Narrow-Base Weld Nuts
These weld nuts have an offset barrel so you can position threads near edges and corners. Weld them to thin and thick stainless steel surfaces to add strong, permanent threads that won’t corrode from contact with chemicals. With a narrow base, they fit in channels and other tight spaces where round-base nuts do not. They have a low profile, so they fit in low-clearance areas, too. These nuts have a flat base that acts as a flange to distribute the load, so they stand up to greater torque and pull force than rivet nuts.
For technical drawings and 3-D models, click on a part number.
Base | Barrel | ||||||||
---|---|---|---|---|---|---|---|---|---|
Thread Size | Lg. | Wd. | Thick. | Dia. | Ht. | For Hole Dia. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||||
8-32 | 5/8" | 3/8" | 3/32" | 13/64" | 1/32" | 7/32" | 10 | 000000000 | 000000 |
Steel Offset-Barrel Narrow-Base Weld Nuts with Projection
To protect their threads from deforming, these steel nuts have a projection that concentrates your weld and creates room for heat to dissipate. An offset barrel lets you position threads near the edges and corners of uncoated steel sheets. Narrow at the base, they fit into channels and other spaces too tight for round-base nuts. These weld nuts stand up to high torque and pull force better than rivet and press-fit nuts, making them the strongest way to add permanent threads to sheet metal. They can also be welded onto thick metal surfaces.
For technical drawings and 3-D models, click on a part number.
Base | Barrel | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Lg. | Wd. | Thick. | Dia. | Ht. | For Hole Dia. | No.of Projections | Pkg. Qty. | Pkg. | |
Steel | ||||||||||
8-32 | 5/8" | 7/16" | 3/32" | 13/64" | 1/32" | 7/32" | 1 | 25 | 000000000 | 00000 |
Steel Round-Base Weld Nuts
A smooth base provides more contact with the mating surface than weld nuts with projections. Both sides of the weld nut base are flat, so it can be welded flush to a surface or with the barrel through the hole. Use them to add strong, permanent threads to uncoated steel surfaces. Its barrel is twice as long as low-profile weld nuts for added thread engagement. Because they’re welded on, they can stand up to more torque and pull force than rivet nuts.
Uncoated steel weld nuts can be welded on with minimal preparation.
Zinc-plated steel weld nuts are corrosion resistant in wet environments. They require some preparation before welding, such as grinding off the plating from the part of the nut you intend to weld.
For technical drawings and 3-D models, click on a part number.
Stainless Steel Round-Base Weld Nuts
A smooth base provides more contact with stainless steel surfaces than weld nuts with projections. The base also acts as a flange to distribute the load. A long barrel ensures secure thread engagement.
For technical drawings and 3-D models, click on a part number.
Base | Barrel | ||||||
---|---|---|---|---|---|---|---|
Thread Size | Dia. | Thick. | Dia. | Ht. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||
8-32 | 1/2" | 3/64" | 0.219" | 1/4" | 10 | 000000000 | 000000 |
Round-Base Weld Nuts with Projections
Projections on the base concentrate the weld and provide room for heat to dissipate. Weld them to flat uncoated steel surfaces for a strong permanent hold. The round base acts as a flange to distribute the load. A long barrel ensures secure thread engagement.
For technical drawings and 3-D models, click on a part number.
Base | Barrel | |||||||
---|---|---|---|---|---|---|---|---|
Thread Size | Dia. | Thick. | Dia. | Ht. | No. of Projections | Pkg. Qty. | Pkg. | |
Steel | ||||||||
8-32 | 23/32" | 1/32" | 0.219" | 1/4" | 3 | 50 | 000000000 | 000000 |
Square Weld Nuts
Square weld nuts have more weld points than hex nuts for a stronger hold. Use them to add strong, permanent threads to uncoated steel surfaces. They stand up to more torque and pulling force than rivet nuts. These fasteners are uncoated, so they require minimal preparation before welding. All have a collar pilot that guides the nut into the hole, holds it in place while welding, and protects the threads from weld spatter.
Nuts that meet ASME B1.1 comply with specifications for dimensional standards.
For technical drawings and 3-D models, click on a part number.
Collar | |||||||||
---|---|---|---|---|---|---|---|---|---|
Thread Size | Wd. | Ht. | Dia. | Ht. | For Hole Dia. | Specifications Met | Pkg. Qty. | Pkg. | |
Steel | |||||||||
8-32 | 7/16" | 9/64" | 13/64" | 0.046" | 7/32" | ASME B1.1 | 25 | 000000000 | 000000 |
Steel Hex Weld Nuts
Weld these nuts to flat and uneven uncoated steel surfaces for a strong permanent hold. A collar pilot assists alignment and prevents welding spatter from getting into threads.
All nuts meet ASME B1.1 and comply with specifications for dimensional standards.
For technical drawings and 3-D models, click on a part number.
Collar | |||||||||
---|---|---|---|---|---|---|---|---|---|
Thread Size | Wd. | Ht. | Dia. | Ht. | For Hole Dia. | Specifications Met | Pkg. Qty. | Pkg. | |
Steel | |||||||||
8-32 | 1/2" | 3/16" | 13/32" | 0.04" | 27/64" | ASME B1.1 | 10 | 000000000 | 00000 |
Aligning Weld Nuts
Threads float inside the retainer so you can install a bolt at a slight angle to align with off-center parts. Weld these nuts to metal surfaces for a strong, permanent hold. They stand up to high torque and pulling force better than rivet nuts.
For the strongest threads, choose steel nuts. Nuts with a steel retainer should be welded to uncoated steel surfaces.
For technical drawings and 3-D models, click on a part number.
Base | |||||||
---|---|---|---|---|---|---|---|
Thread Size | Lg. | Wd. | Thick. | Ht. | Pkg. Qty. | Pkg. | |
Steel Nut with C1008/C1010 Steel Retainer | |||||||
8-32 | 1 1/2" | 1/2" | 3/64" | 11/32" | 10 | 000000000 | 000000 |
Steel Corner Weld Nuts
Install strong, permanent threads in sheet metal to create a 90° joint. Shaped like corner brackets, these weld nuts are often used to add mounting brackets in assemblies such as motors and heaters. In addition to sheet metal, you can weld them onto thick steel surfaces. Projections on the base of these nuts concentrate your weld and create room for heat to dissipate, protecting threads from deformation.
For technical drawings and 3-D models, click on a part number.
Screw-Mount Nuts
These nuts have three mounting holes to accept screws and rivets. Insert the barrel through a hole or fasten the base with the barrel facing upward for use with thin materials. The longer the barrel, the more thread engagement with your screw.
Zinc-plated steel nuts are corrosion resistant in wet environments.
For technical drawings and 3-D models, click on a part number.
Base | Barrel | ||||||||
---|---|---|---|---|---|---|---|---|---|
Thread Size | Dia. | Thick. | Dia. | Ht. | Mounting Hole Dia. | Pkg. Qty. | Pkg. | ||
Zinc-Plated Steel | |||||||||
A | 8-32 | 23/32" | 1/32" | 7/32" | 1/4" | 7/64" | 50 | 000000000 | 000000 |
Stainless Steel Adhesive-Mount Nuts
These nuts have excellent resistance to chemicals and salt water. Large holes in the base to allow adhesive to flow through. They’re often molded into plastics and used to add threads to plastic that is too thin to fit a threaded insert.
For technical drawings and 3-D models, click on a part number.
Steel Adhesive-Mount Nuts
Large holes in the base allow adhesive to flow through. These nuts are often molded into plastics and used to add threads to plastic that is too thin to fit a threaded insert. A zinc plating provides corrosion resistance in wet environments.
For technical drawings and 3-D models, click on a part number.
Mil. Spec. Rivet-Mount Nuts
Create threads in hard-to-work areas—where you can’t reach the back of a workpiece, or material is too thin to be tapped. For a strong grip, these nuts have distorted threads that increase friction with bolts. Because they mount with two rivets, they won’t spin when you’re tightening screws. However, these nuts do move inside their retainers, which lets you install bolts at a slight angle; use them to align with off-center parts. All meet military guidelines for dimensions and material.
Cadmium-plated nuts resist corrosion in industrial and saltwater environments, although will lose their corrosion resistance over 450° F. The cadmium plating also adds lubricity, making these nuts easy to install.
A286 stainless steel nuts are corrosion resistant. Silver-plated stainless steel nuts withstand temperatures up to 800° F. The silver plating also adds lubricity and prevents seizing caused by friction between nuts and bolts.
Lubricated nuts thread onto bolts smoothly.
For technical drawings and 3-D models, click on a part number.
Base | Barrel | Mounting | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Lg. | Wd. | Thick. | Dia. | Ht. | No. of Holes | Hole Dia. | Hole Ctr.-to-Ctr. | Specifications Met | Each | |
Steel—Unlubricated | |||||||||||
8-32 | 45/64" | 23/64" | 3/32" | 0.203" | 5/32" | 2 | 0.098" | 15/32" | MS21075-08N | 000000000 | 00000 |
Cadmium-Plated Steel—Lubricated | |||||||||||
8-32 | 45/64" | 23/64" | 3/32" | 0.203" | 5/32" | 2 | 0.098" | 15/32" | MS21075L08N | 000000000 | 0000 |
Carbon Steel—Unlubricated | |||||||||||
8-32 | 61/64" | 13/32" | 1/32" | 0.203" | 7/32" | 2 | 0.098" | 11/16" | MS21059-08 | 000000000 | 0000 |
Cadmium-Plated Carbon Steel—Lubricated | |||||||||||
8-32 | 61/64" | 13/32" | 1/32" | 0.203" | 7/32" | 2 | 0.098" | 11/16" | MS21059L08 | 000000000 | 0000 |
A286 Stainless Steel—Lubricated | |||||||||||
8-32 | 45/64" | 23/64" | 3/32" | 0.203" | 5/32" | 2 | 0.098" | 15/32" | MS21076L08N | 000000000 | 0000 |
8-32 | 61/64" | 13/32" | 1/32" | 0.203" | 7/32" | 2 | 0.098" | 11/16" | MS21060L08 | 000000000 | 0000 |
Silver-Plated A286 Stainless Steel—Unlubricated | |||||||||||
8-32 | 45/64" | 23/64" | 3/32" | 0.203" | 5/32" | 2 | 0.098" | 15/32" | MS21076-08N | 000000000 | 00000 |