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Steel Hex Weld Nuts



With three weld points, these hex weld nuts create a secure hold on steel surfaces. They 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 on thick pieces of metal. Made of uncoated steel, they require minimal prep for welding to uncoated steel surfaces. All have a collar pilot to guide the nut into the hole and hold it in place while welding. This also protects the threads from weld spatter.
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 | |||||||||
1/4"-28 | 1/2" | 3/16" | 13/32" | 0.04" | 27/64" | ASME B1.1 | 25 | 000000000 | 000000 |
Stainless Steel Hex Weld Nuts



Weld these nuts to flat and uneven stainless steel surfaces for a strong permanent hold. They have a collar pilot that 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. | |
18-8 Stainless Steel | |||||||||
1/4"-28 | 1/2" | 3/16" | 13/32" | 0.04" | 27/64" | ASME B1.1 | 10 | 000000000 | 00000 |
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 | |||||||||
1/4"-28 | 1/2" | 5/32" | 13/32" | 0.063" | 27/64" | ASME B1.1 | 50 | 000000000 | 000000 |
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 | ||||||||||
1/4"-28 | 13/16" | 1/2" | 1/8" | 19/64" | 1/16" | 19/64" | 2 | 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 | ||||||||||
1/4"-28 | 13/16" | 1/2" | 1/8" | 0.297" | 1/16" | 19/64" | 2 | 10 | 000000000 | 00000 |
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.
For technical drawings and 3-D models, click on a part number.
Base | Barrel | |||||||
---|---|---|---|---|---|---|---|---|
Thread Size | Lg. | Wd. | Thick. | Dia. | Ht. | Pkg. Qty. | Pkg. | |
Steel | ||||||||
1/4"-28 | 3/4" | 1/2" | 1/16" | 5/16" | 21/64" | 50 | 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 | |||||||||
1/4"-28 | 13/16" | 1/2" | 1/8" | 19/64" | 1/16" | 5/16" | 10 | 000000000 | 000000 |
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 | |||||||
1/4"-28 | 1 3/4" | 9/16" | 1/16" | 7/16" | 10 | 000000000 | 000000 |
Stainless Steel Adhesive-Ready Nuts

Add strong threads to material that’s too difficult to drill or too thin to grip a threaded insert. These nuts are ideal for brittle plastics or tough composites, such as acrylic or carbon fiber. They have large holes in the base so that adhesive or resin can flow through, spread out, and create an extra-strong hold. You can also mold them into the surface of your material. Made of 316 stainless steel, they resist corrosion from salt water and harsh chemicals.
The base of these nuts acts like a flange, distributing pressure evenly across the mounting surface. The larger the base, the more that pressure is spread out; the smaller the base, the tighter the space these nuts can fit into. Taller nuts engage more of a screw’s threads than shorter nuts. Shorter nuts fit in low-clearance areas.
For technical drawings and 3-D models, click on a part number.
Stainless Steel Narrow-Base Adhesive-Ready Nuts

Add corrosion-resistant threads to channels, corners, and other tight spaces without drilling a hole. Glue these nuts on to thin surfaces and materials too hard and brittle to drill, such as acrylic and carbon fiber. Large holes in the base allow adhesive and resin to flow and spread along the joint for a good bond. You can mold them into plastics or composites. Made of 316 stainless steel, these nuts are excellent at resisting chemicals and salt water.
The base of these nuts acts like a flange, distributing pressure evenly across the mounting surface. Larger bases spread the pressure over more surface for a strong bond, while smaller bases fit better in tight spaces.
For technical drawings and 3-D models, click on a part number.
Steel Narrow-Base Adhesive-Ready Nuts

Fit these nuts into channels, corners, and other tight spaces to add strong threads without drilling a hole. They’re ideal for material that’s too thin or too hard and brittle to drill, such as acrylic and carbon fiber. For a strong hold, large holes in the base let adhesive and resin flow through and spread out. You can also mold these nuts into plastics or composites. Thanks to a zinc plating, they resist rusting in wet environments.
The base of these nuts acts like a flange, distributing pressure evenly across the mounting surface. The larger the base, the more that pressure is spread out; the smaller the base, the tighter the space these nuts can fit into.
For technical drawings and 3-D models, click on a part number.
Tube-End Weld Nuts


Weld these nuts to round uncoated metal tubes to attach threaded parts, such as rod ends. Also known as tube adapters and weldable threaded tube ends.
For technical drawings and 3-D models, click on a part number.
For Tube Wall Thick. | Thread Size | Ht. | Threading | Thread Lg. | Each | |
4130 Alloy Steel | ||||||
---|---|---|---|---|---|---|
For 1/2" Tube OD | ||||||
0.058" | 1/4"-28 | 1" | Fully Threaded | 1" | 000000000 | 00000 |
Left-Hand Threaded Tube-End Weld Nuts


Use these tube-end nuts with left-hand threaded fasteners. You can weld them to round uncoated metal tubes to attach threaded parts, such as rod ends. Also known as tube adapters and weldable threaded tube ends.
For technical drawings and 3-D models, click on a part number.
For Tube Wall Thick. | Thread Size | Ht. | Threading | Thread Lg. | Each | |
4130 Alloy Steel | ||||||
---|---|---|---|---|---|---|
For 1/2" Tube OD | ||||||
0.058" | 1/4"-28 | 1" | Fully Threaded | 1" | 000000000 | 00000 |