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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.
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 |
| 10-24 | 1/2" | 3/16" | 13/32" | 0.04" | 27/64" | ASME B1.1 | 25 | 000000000 | 00000 |
| 10-32 | 1/2" | 3/16" | 13/32" | 0.04" | 27/64" | ASME B1.1 | 25 | 000000000 | 00000 |
| 1/4"-20 | 1/2" | 3/16" | 13/32" | 0.047" | 27/64" | ASME B1.1 | 50 | 000000000 | 00000 |
| 1/4"-20 | 1/2" | 3/16" | 13/32" | 0.085" | 27/64" | ASME B1.1 | 25 | 000000000 | 00000 |
| 1/4"-28 | 1/2" | 3/16" | 13/32" | 0.04" | 27/64" | ASME B1.1 | 25 | 000000000 | 00000 |
| 5/16"-18 | 9/16" | 7/32" | 15/32" | 0.047" | 31/64" | ASME B1.1 | 50 | 000000000 | 00000 |
| 5/16"-18 | 9/16" | 7/32" | 15/32" | 0.085" | 31/64" | ASME B1.1 | 25 | 000000000 | 00000 |
| 5/16"-24 | 9/16" | 7/32" | 15/32" | 0.085" | 31/64" | ASME B1.1 | 25 | 000000000 | 00000 |
| 3/8"-16 | 5/8" | 1/4" | 17/32" | 0.047" | 35/64" | ASME B1.1 | 50 | 000000000 | 00000 |
| 3/8"-16 | 5/8" | 1/4" | 17/32" | 0.085" | 35/64" | ASME B1.1 | 25 | 000000000 | 00000 |
| 3/8"-24 | 5/8" | 1/4" | 17/32" | 0.05" | 35/64" | ASME B1.1 | 25 | 000000000 | 00000 |
| 7/16"-14 | 3/4" | 21/64" | 21/32" | 0.05" | 43/64" | ASME B1.1 | 25 | 000000000 | 00000 |
| 7/16"-14 | 3/4" | 21/64" | 21/32" | 0.085" | 43/64" | ASME B1.1 | 10 | 000000000 | 00000 |
| 7/16"-20 | 3/4" | 21/64" | 21/32" | 0.05" | 43/64" | ASME B1.1 | 25 | 000000000 | 00000 |
| 7/16"-20 | 3/4" | 21/64" | 21/32" | 0.085" | 43/64" | ASME B1.1 | 10 | 000000000 | 00000 |
| 1/2"-13 | 13/16" | 3/8" | 23/32" | 0.063" | 47/64" | ASME B1.1 | 25 | 000000000 | 00000 |
| 5/8"-11 | 15/16" | 29/64" | 25/32" | 0.06" | 51/64" | ASME B1.1 | 10 | 000000000 | 00000 |
| 5/8"-11 | 15/16" | 29/64" | 25/32" | 0.085" | 51/64" | ASME B1.1 | 10 | 000000000 | 00000 |
| 3/4"-10 | 1 15/64" | 5/8" | 31/32" | 0.06" | 63/64" | ASME B1.1 | 5 | 000000000 | 00000 |
Metric Steel Hex Weld Nuts
The three weld points on these metric hex nuts create a secure hold on a steel surface. Weld them to sheet metal or thick steel surfaces to add strong, permanent threads. They stand up to high torque and pull force better than rivet nuts. Made of uncoated steel, there’s minimal prep required to weld them to uncoated steel surfaces. 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.
For technical drawings and 3-D models, click on a part number.
Thread | Collar | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | Wd., mm | Ht., mm | Dia., mm | Ht., mm | For Hole Dia., mm | Specifications Met | Pkg. Qty. | Pkg. | |
Steel | ||||||||||
| M3 | 0.5 | 7.5 | 2.45 | 4.5 | 0.55 | 4.5 | DIN 929 | 100 | 000000000 | 000000 |
| M4 | 0.7 | 9 | 2.85 | 6 | 0.65 | 6 | DIN 929 | 100 | 000000000 | 00000 |
| M5 | 0.8 | 10 | 3.3 | 7 | 0.7 | 7 | DIN 929 | 100 | 000000000 | 00000 |
| M6 | 1 | 11 | 4.25 | 8 | 0.75 | 8 | DIN 929 | 50 | 000000000 | 0000 |
| M8 | 1.25 | 14 | 5.6 | 10.5 | 0.9 | 10.5 | DIN 929 | 50 | 000000000 | 00000 |
| M10 | 1.25 | 17 | 6.85 | 12.5 | 1.15 | 12.5 | DIN 929 | 25 | 000000000 | 00000 |
| M10 | 1.5 | 17 | 6.85 | 12.5 | 1.15 | 12.5 | DIN 929 | 25 | 000000000 | 00000 |
| M12 | 1.75 | 19 | 8.6 | 14.8 | 1.4 | 14.8 | DIN 929 | 25 | 000000000 | 00000 |
| M14 | 2 | 22 | 9.2 | 16.8 | 1.8 | 16.8 | DIN 929 | 10 | 000000000 | 0000 |
| M16 | 2 | 24 | 11.2 | 18.8 | 1.8 | 18.8 | DIN 929 | 10 | 000000000 | 00000 |
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"-20 | 1/2" | 3/16" | 13/32" | 0.047" | 27/64" | ASME B1.1 | 10 | 000000000 | 00000 |
| 1/4"-28 | 1/2" | 3/16" | 13/32" | 0.04" | 27/64" | ASME B1.1 | 10 | 000000000 | 0000 |
| 5/16"-18 | 9/16" | 7/32" | 15/32" | 0.047" | 31/64" | ASME B1.1 | 5 | 000000000 | 0000 |
| 3/8"-16 | 5/8" | 1/4" | 17/32" | 0.047" | 35/64" | ASME B1.1 | 5 | 000000000 | 0000 |
| 1/2"-13 | 13/16" | 3/8" | 23/32" | 0.06" | 47/64" | ASME B1.1 | 5 | 000000000 | 00000 |
Metric Stainless Steel Hex Weld Nuts
You can weld these nuts to flat and uneven uncoated stainless steel surfaces for a strong permanent hold. They have a collar pilot that assists alignment and prevents welding spatter from getting into threads.
For technical drawings and 3-D models, click on a part number.
Thread | Collar | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | Wd., mm | Ht., mm | Dia., mm | Ht., mm | For Hole Dia., mm | Specifications Met | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||||||
| M3 | 0.5 | 7.5 | 2.5 | 4.5 | 0.55 | 4.5 | DIN 929 | 100 | 000000000 | 000000 |
| M4 | 0.7 | 9 | 2.9 | 6 | 0.65 | 6 | DIN 929 | 50 | 000000000 | 0000 |
| M5 | 0.8 | 10 | 3.3 | 7 | 0.7 | 7 | DIN 929 | 50 | 000000000 | 00000 |
| M6 | 1 | 11 | 4.3 | 8 | 0.75 | 8 | DIN 929 | 25 | 000000000 | 0000 |
| M8 | 1.25 | 14 | 5.6 | 10.5 | 0.9 | 10.5 | DIN 929 | 25 | 000000000 | 00000 |
| M10 | 1.5 | 17 | 6.9 | 12.5 | 1.15 | 12.5 | DIN 929 | 10 | 000000000 | 0000 |
| M12 | 1.75 | 19 | 8.6 | 14.8 | 1.4 | 14.8 | DIN 929 | 10 | 000000000 | 00000 |
| M16 | 2 | 24 | 11.2 | 18.8 | 1.8 | 18.8 | DIN 929 | 1 | 000000000 | 00000 |
Steel Screw-Locking Hex Weld Nuts
Irregularly shaped threads in these nuts form a tight grip, preventing screws from backing out in vibration-heavy 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 threads to sheet metal. They can be welded onto thick metal surfaces, too. To protect their threads from deforming, these nuts have three projections that concentrate your weld and create room for heat to dissipate. A collar pilot guides the nut into the hole, lightly holds it in place during welding, and protects threads from spatter.
These nuts are designed for use with Grade 2 or Class 6 screws. Use screws that have a similar strength rating to avoid stripping threads during installation. Screw-locking threads require high torque for fastening and unfastening, so you may need an impact wrench to remove screws.
For technical drawings and 3-D models, click on a part number.
Collar | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Wd. | Ht. | Dia. | Ht. | For Hole Dia. | No. of Projections | Pkg. Qty. | Pkg. | |
Steel | |||||||||
| 10-24 | 1/2" | 3/16" | 13/32" | 0.04" | 27/64" | 3 | 10 | 000000000 | 00000 |
| 10-32 | 1/2" | 3/16" | 13/32" | 0.04" | 27/64" | 3 | 10 | 000000000 | 0000 |
| 1/4"-20 | 15/32" | 11/64" | 13/32" | 0.04" | 27/64" | 3 | 100 | 000000000 | 00000 |
| 1/4"-20 | 1/2" | 3/16" | 13/32" | 0.085" | 27/64" | 3 | 25 | 000000000 | 0000 |
| 5/16"-18 | 35/64" | 13/64" | 15/32" | 0.04" | 31/64" | 3 | 100 | 000000000 | 00000 |
| 5/16"-18 | 9/16" | 7/32" | 15/32" | 0.085" | 31/64" | 3 | 10 | 000000000 | 0000 |
| 3/8"-16 | 39/64" | 15/64" | 17/32" | 0.05" | 35/64" | 3 | 50 | 000000000 | 00000 |
| 3/8"-16 | 5/8" | 1/4" | 17/32" | 0.085" | 35/64" | 3 | 10 | 000000000 | 0000 |
| 1/2"-13 | 25/32" | 23/64" | 23/32" | 0.06" | 47/64" | 3 | 50 | 000000000 | 00000 |
| 1/2"-13 | 25/32" | 23/64" | 23/32" | 0.085" | 47/64" | 3 | 50 | 000000000 | 00000 |
| 5/8"-11 | 5/16" | 7/16" | 25/32" | 0.085" | 51/64" | 3 | 5 | 000000000 | 0000 |
| 5/8"-11 | 59/64" | 27/64" | 25/32" | 0.085" | 51/64" | 3 | 25 | 000000000 | 00000 |
Thread | Collar | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | Wd., mm | Ht., mm | Dia., mm | Ht., mm | For Hole Dia., mm | No. of Projections | Pkg. Qty. | Pkg. | |
Steel | ||||||||||
| M5 | 0.8 | 11 | 5.5 | 7.6 | 0.9 | 7.6 | 3 | 10 | 000000000 | 00000 |
| M6 | 1 | 12.7 | 5.1 | 8.8 | 1 | 8.8 | 3 | 100 | 000000000 | 00000 |
| M6 | 1 | 13 | 5.5 | 9.1 | 1.6 | 9.1 | 3 | 25 | 000000000 | 0000 |
| M8 | 1.25 | 14.7 | 6.6 | 10.9 | 1 | 10.9 | 3 | 50 | 000000000 | 00000 |
| M8 | 1.25 | 15 | 7 | 11.1 | 1.8 | 11.1 | 3 | 10 | 000000000 | 0000 |
| M10 | 1.5 | 17.7 | 7.7 | 13.4 | 1.16 | 13.4 | 3 | 50 | 000000000 | 00000 |
| M10 | 1.5 | 18 | 8 | 13.6 | 1.8 | 13.6 | 3 | 10 | 000000000 | 0000 |
| M12 | 1.75 | 20.6 | 9.4 | 15.9 | 1.26 | 15.9 | 3 | 50 | 000000000 | 00000 |
| M12 | 1.75 | 21 | 9.7 | 16.1 | 1.8 | 16.1 | 3 | 10 | 000000000 | 0000 |
| M16 | 2 | 26 | 13 | 20.6 | 1.3 | 20.6 | 3 | 5 | 000000000 | 0000 |
Titanium Hex Weld Nuts
When you need a high strength-to-weight ratio and extreme corrosion resistance, choose these titanium weld nuts. They’re 40% lighter than steel and stand up to salt water, acids, and chemicals. Weld them onto titanium surfaces to add strong, permanent threads. Projections on the base concentrate your weld and create room for heat to dissipate, protecting the threads from deforming. The threads are also protected from weld spatter thanks to the collar pilot, which guides the nut into the hole and holds it in place.
Nuts that meet ASME B1.1 comply with dimensional specifications for threaded fasteners. Nuts that meet DIN 929 comply with dimensional standards for hex-shaped weld nuts.
For technical drawings and 3-D models, click on a part number.
Collar | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Wd. | Ht. | Dia. | Ht. | For Hole Dia. | No. of Projections | Specifications Met | Each | |
Grade 2 Titanium | |||||||||
| 10-24 | 1/2" | 3/16" | 13/32" | 0.04" | 13/32" | 3 | ASME B1.1 | 000000000 | 000000 |
| 1/4"-20 | 1/2" | 3/16" | 13/32" | 0.047" | 13/32" | 3 | ASME B1.1 | 000000000 | 00000 |
| 5/16"-18 | 9/16" | 7/32" | 15/32" | 0.047" | 15/32" | 3 | ASME B1.1 | 000000000 | 00000 |
| 3/8"-16 | 5/8" | 1/4" | 17/32" | 0.047" | 17/32" | 3 | ASME B1.1 | 000000000 | 00000 |
| 1/2"-13 | 13/16" | 3/8" | 23/32" | 0.063" | 23/32" | 3 | ASME B1.1 | 000000000 | 00000 |