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Steel Heavy Duty Twist-Resistant Hex-Shaped Rivet Nuts
Our most twist-resistant rivet nuts, these hex nuts are held in place by their flat sides to keep them from spinning as you tighten screws. With thick walls that hold up in heavy duty applications, they're also among our strongest rivet nuts. Installation only requires access to one side of sheet metal. The flange distributes the load and secures these nuts to the surface of your material. Made of zinc-plated steel, they resist corrosion in wet environments.
Install in a hex-shaped punched hole with a hydraulic or power-driven rivet nut tool. The tool collapses the nut, creating a backside flange that holds the nut to the material.
Length is measured from under the flange. Installed length is the maximum length of the barrel when installed.
For technical drawings and 3-D models, click on a part number.
Body | Flange | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size  | Wd. Across Flats | For Material Thick. | Type | Dia. | Lg. | Installed Lg. | Dia. | Thick. | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | |||||||||||
| 10-24 | 7/32" | 0.010" to 0.085" | Hex | 0.223" | 0.301" | 0.200" | 0.344" | 0.043" | 25 | 000000000 | 00000 |
| 10-24 | 7/32" | 0.085" to 0.135" | Hex | 0.223" | 0.363" | 0.210" | 0.344" | 0.043" | 25 | 000000000 | 0000 |
| 10-32 | 7/32" | 0.010" to 0.085" | Hex | 0.223" | 0.301" | 0.200" | 0.344" | 0.043" | 25 | 000000000 | 0000 |
| 10-32 | 7/32" | 0.085" to 0.135" | Hex | 0.223" | 0.363" | 0.210" | 0.344" | 0.043" | 25 | 000000000 | 0000 |
| 1/4"-20 | 19/64" | 0.020" to 0.085" | Hex | 0.296" | 0.363" | 0.250" | 0.437" | 0.043" | 25 | 000000000 | 0000 |
| 1/4"-20 | 19/64" | 0.085" to 0.145" | Hex | 0.296" | 0.426" | 0.250" | 0.437" | 0.043" | 10 | 000000000 | 0000 |
| 1/4"-20 | 23/64" | 0.138" to 0.236" | Hex | 0.354" | 0.756" | 0.354" | 0.511" | 0.059" | 25 | 000000000 | 0000 |
| 1/4"-20 | 23/64" | 0.236" to 0.335" | Hex | 0.354" | 0.854" | 0.354" | 0.511" | 0.059" | 25 | 000000000 | 0000 |
| 5/16"-18 | 3/8" | 0.030" to 0.105" | Hex | 0.368" | 0.514" | 0.375" | 0.562" | 0.048" | 10 | 000000000 | 0000 |
| 5/16"-18 | 3/8" | 0.105" to 0.175" | Hex | 0.368" | 0.592" | 0.380" | 0.562" | 0.048" | 10 | 000000000 | 0000 |
| 5/16"-18 | 3/8" | 0.175" to 0.245" | Hex | 0.368" | 0.655" | 0.375" | 0.562" | 0.048" | 10 | 000000000 | 0000 |
| 5/16"-18 | 7/16" | 0.157" to 0.276" | Hex | 0.432" | 0.897" | 0.535" | 0.63" | 0.059" | 10 | 000000000 | 0000 |
| 5/16"-18 | 7/16" | 0.276" to 0.394" | Hex | 0.432" | 1.02" | 0.535" | 0.63" | 0.059" | 10 | 000000000 | 0000 |
| 3/8"-16 | 7/16" | 0.104" to 0.239" | Hex | 0.437" | 0.698" | 0.410" | 0.656" | 0.058" | 10 | 000000000 | 0000 |
| 3/8"-16 | 33/64" | 0.039" to 0.177" | Hex | 0.511" | 0.91" | 0.689" | 0.748" | 0.079" | 10 | 000000000 | 0000 |
| 3/8"-16 | 33/64" | 0.177" to 0.295" | Hex | 0.511" | 1.01" | 0.689" | 0.748" | 0.079" | 10 | 000000000 | 0000 |
| 3/8"-16 | 33/64" | 0.295" to 0.413" | Hex | 0.511" | 1.14" | 0.689" | 0.748" | 0.079" | 10 | 000000000 | 0000 |
Thread | Body | Flange | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | Wd. Across Flats, mm | For Material Thick., mm | Type | Dia., mm | Lg., mm | Installed Lg., mm | Dia., mm | Thick., mm | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | ||||||||||||
| M6 | 1 | 9 | 1.0 to 3.5 | Hex | 8.980 | 16.7 | 11.900 | 13 | 1.5 | 25 | 000000000 | 00000 |
| M6 | 1 | 9 | 3.5 to 6.0 | Hex | 8.980 | 19.2 | 11.900 | 13 | 1.5 | 25 | 000000000 | 00000 |
| M6 | 1 | 9 | 6.0 to 8.5 | Hex | 8.980 | 21.7 | 11.900 | 13 | 1.5 | 25 | 000000000 | 00000 |
| M8 | 1.25 | 11 | 0.8 to 4.0 | Hex | 10.980 | 19.6 | 13.600 | 16 | 1.5 | 10 | 000000000 | 0000 |
| M8 | 1.25 | 11 | 4.0 to 7.0 | Hex | 10.980 | 22.8 | 13.600 | 16 | 1.5 | 10 | 000000000 | 0000 |
| M8 | 1.25 | 11 | 7.0 to 10.0 | Hex | 10.980 | 26 | 13.600 | 16 | 1.5 | 10 | 000000000 | 0000 |
| M10 | 1.5 | 13 | 1.0 to 4.5 | Hex | 12.980 | 23.1 | 17.500 | 19 | 2 | 10 | 000000000 | 0000 |
| M10 | 1.5 | 13 | 4.5 to 7.5 | Hex | 12.980 | 25.6 | 17.500 | 19 | 2 | 10 | 000000000 | 0000 |
| M10 | 1.5 | 13 | 7.5 to 10.5 | Hex | 12.980 | 29.1 | 17.500 | 19 | 2 | 10 | 000000000 | 0000 |
Screw-Locking Heavy Duty Twist-Resistant Rivet Nuts
Irregularly shaped threads in these nuts form a tight grip, preventing screws from backing out in vibration-heavy environments. Our most twist-resistant rivet nuts, these hex-shaped nuts are held in place by their flat sides to keep them from spinning as you tighten screws. They're also among our strongest rivet nuts and hold up in heavy duty applications. Use these rivet nuts to create reusable threads in sheet metal and other surfaces that are too thin to be tapped. They’re also known as blind inserts—installation requires access to just one side of your material. The flange distributes the load and holds these nuts against the surface. Made of zinc-plated steel, they resist corrosion in wet environments.
Install in a hex-shaped punched hole with a rivet nut tool. The tool collapses the nut, creating a backside flange that holds the nut to the material. Screw-locking threads require high torque for fastening and unfastening, so you may need an impact wrench to remove screws.
Length is measured from under the flange. Installed length is the maximum length of the barrel when installed.
For technical drawings and 3-D models, click on a part number.
Body | Flange | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Wd. Across Flats | For Material Thick. | Type | Dia. | Lg. | Installed Lg. | Dia. | Thick. | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | |||||||||||
| 1/4"-20 | 23/64" | 0.039" to 0.138" | Hex | 0.354" | 0.657" | 0.469" | 0.511" | 0.059" | 25 | 000000000 | 000000 |
| 1/4"-20 | 23/64" | 0.138" to 0.236" | Hex | 0.354" | 0.756" | 0.469" | 0.511" | 0.059" | 25 | 000000000 | 00000 |
| 1/4"-20 | 23/64" | 0.236" to 0.335" | Hex | 0.354" | 0.854" | 0.469" | 0.511" | 0.059" | 25 | 000000000 | 00000 |
| 5/16"-18 | 7/16" | 0.031" to 0.157" | Hex | 0.432" | 0.771" | 0.535" | 0.63" | 0.059" | 10 | 000000000 | 0000 |
| 5/16"-18 | 7/16" | 0.157" to 0.276" | Hex | 0.432" | 0.897" | 0.535" | 0.63" | 0.059" | 10 | 000000000 | 0000 |
| 3/8"-16 | 33/64" | 0.039" to 0.177" | Hex | 0.511" | 0.91" | 0.689" | 0.748" | 0.079" | 10 | 000000000 | 0000 |
| 3/8"-16 | 33/64" | 0.177" to 0.295" | Hex | 0.511" | 1.01" | 0.689" | 0.748" | 0.079" | 10 | 000000000 | 0000 |
Thread | Body | Flange | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | Thread Pitch, mm | Wd. Across Flats | For Material Thick., mm | Type | Dia., mm | Lg., mm | Installed Lg., mm | Dia., mm | Thick., mm | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | ||||||||||||
| M6 | 1 | 9 mm | 1 to 3.5 | Hex | 8.98 | 16.7 | 11.9 | 13 | 1.5 | 25 | 000000000 | 000000 |
| M6 | 1 | 9 mm | 3.5 to 6 | Hex | 8.98 | 19.2 | 11.9 | 13 | 1.5 | 25 | 000000000 | 00000 |
| M8 | 1.25 | 11 mm | 0.8 to 4 | Hex | 10.98 | 19.6 | 13.6 | 16 | 1.5 | 10 | 000000000 | 0000 |
| M8 | 1.25 | 11 mm | 4 to 7 | Hex | 10.98 | 22.8 | 13.6 | 16 | 1.5 | 10 | 000000000 | 0000 |
| M10 | 1.5 | 13 mm | 1 to 4.5 | Hex | 12.98 | 23.1 | 17.5 | 19 | 2 | 10 | 000000000 | 0000 |
| M10 | 1.5 | 13 mm | 4.5 to 7.5 | Hex | 12.98 | 25.6 | 17.5 | 19 | 2 | 10 | 000000000 | 0000 |
Metric Steel Press-Fit Nuts for Sheet Metal
Add permanent metric threads to sheet metal, like weld nuts, but without the setup and mess. A zinc plating on these steel press-fit nuts provides corrosion resistance in wet environments. Also known as clinch-style captive nuts, press them into a drilled or punched hole with an arbor press or similar pressure tool. The pressure forms your sheet metal into the knurls of the nut, making the nut inseparable from the sheet. Installation requires access to both sides of the panel.
For technical drawings and 3-D models, click on a part number.
Press-Fit Nuts | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Thread | Head | Installation Tool | |||||||||
| Size | Pitch, mm | Drill Bit Size | For Min. Panel Thick., mm | For Max. Panel Hardness | Wd., mm | Ht., mm | Pkg. Qty. | Pkg. | Each | ||
Zinc-Plated Steel | |||||||||||
Hex Head | |||||||||||
| M2 | 0.4 | 4.5 mm | 1 | Not Rated | 5.5 | 2.1 | 10 | 000000000 | 00000 | 000000000 | 0000000 |
| M2.5 | 0.45 | 4.5 mm | 1 | Not Rated | 5.5 | 2.1 | 10 | 000000000 | 0000 | 000000000 | 000000 |
| M3 | 0.5 | 4.5 mm | 1 | Not Rated | 5.5 | 2.1 | 25 | 000000000 | 00000 | 000000000 | 000000 |
| M3 | 0.5 | 4.5 mm | 1.4 | Brinell 150, Rockwell B80 | 5.5 | 2 | 25 | 000000000 | 0000 | 000000 | 00 |
| M3 | 0.5 | 4.5 mm | 2 | Not Rated | 5.5 | 1.2 | 10 | 000000000 | 0000 | 000000000 | 000000 |
| M4 | 0.7 | 5.5 mm | 1 | Not Rated | 7 | 2.3 | 25 | 000000000 | 00000 | 000000000 | 000000 |
| M4 | 0.7 | 5.5 mm | 1.4 | Brinell 150, Rockwell B80 | 7 | 2.2 | 25 | 000000000 | 0000 | 000000 | 00 |
| M4 | 0.7 | 5.5 mm | 2 | Not Rated | 7 | 2.7 | 25 | 000000000 | 00000 | 000000000 | 000000 |
| M5 | 0.8 | 6.5 mm | 1 | Not Rated | 8 | 3.1 | 25 | 000000000 | 00000 | 000000000 | 000000 |
| M5 | 0.8 | 6.5 mm | 1.4 | Brinell 150, Rockwell B80 | 8 | 3 | 25 | 000000000 | 0000 | 000000 | 00 |
| M5 | 0.8 | 6.5 mm | 2 | Not Rated | 8 | 3.2 | 25 | 000000000 | 00000 | 000000000 | 000000 |
| M6 | 1 | 8.0 mm | 1 | Not Rated | 10 | 4.1 | 10 | 000000000 | 0000 | 000000 | 00 |
| M6 | 1 | 8.0 mm | 1.4 | Brinell 150, Rockwell B80 | 10 | 4 | 10 | 000000000 | 0000 | 000000 | 00 |
| M6 | 1 | 8.0 mm | 2 | Not Rated | 10 | 3.2 | 10 | 000000000 | 0000 | 000000 | 00 |
| M8 | 1.25 | 10.0 mm | 1.4 | Brinell 150, Rockwell B80 | 13 | 4.5 | 10 | 000000000 | 0000 | 000000 | 00 |
| M8 | 1.25 | 10.0 mm | 2 | Not Rated | 13 | 4.7 | 10 | 000000000 | 0000 | 000000 | 00 |
| M10 | 1.5 | 12.5 mm | 2 | Not Rated | 15 | 6.2 | 5 | 000000000 | 0000 | 000000 | 00 |
| M12 | 1.75 | 14.5 mm | 3 | Not Rated | 17 | 7.2 | 1 | 000000000 | 0000 | 000000 | 00 |
| M16 | 2 | 18.5 mm | 3 | Not Rated | 22 | 11.6 | 1 | 000000000 | 0000 | 000000 | 00 |
Metric Stainless Steel Press-Fit Nuts for Sheet Metal
Made from 18-8 stainless steel, these metric nuts withstand contact with water and chemicals better than zinc-plated steel nuts. They add permanent threads to sheet metal like weld nuts but without the setup and mess. Also known as clinch-style captive nuts, press them into a drilled or punched hole with an arbor press or similar pressure tool. The pressure forms your sheet metal into the knurls of the nut, making the nut inseparable from the sheet. Installation requires access to both sides of the panel.
For technical drawings and 3-D models, click on a part number.
Thread | Head | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | Drill Bit Size | For Min. Panel Thick., mm | For Max. Panel Hardness | Wd., mm | Ht., mm | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||||
Hex Head | |||||||||
| M3 | 0.5 | 4.5 mm | 1 | Not Rated | 5.5 | 2.1 | 10 | 000000000 | 00000 |
| M4 | 0.7 | 5.5 mm | 1 | Not Rated | 7 | 2.3 | 10 | 000000000 | 00000 |
| M5 | 0.8 | 6.5 mm | 1 | Not Rated | 8 | 3.1 | 10 | 000000000 | 00000 |
| M6 | 1 | 8.0 mm | 1 | Not Rated | 10 | 4.1 | 5 | 000000000 | 0000 |
| M8 | 1.25 | 10.0 mm | 2 | Not Rated | 13 | 4.7 | 1 | 000000000 | 0000 |
| M10 | 1.5 | 12.5 mm | 2 | Not Rated | 15 | 6.2 | 1 | 000000000 | 0000 |
| M12 | 1.75 | 14.5 mm | 3 | Not Rated | 17 | 7.2 | 1 | 000000000 | 0000 |
Flush-Mount Press-Fit Nuts for Sheet Metal
To fit in low-clearance areas, these press-fit nuts have a flat hex head that sits flush against the surface of your material. Made of 18-8 stainless steel, they withstand contact with water and chemicals better than zinc-plated steel nuts. Use them to add permanent threads to sheet metal like weld nuts but without the setup and mess. Also known as clinch-style captive nuts, press them into a drilled or punched hole with an arbor press or similar pressure tool. The pressure forms your sheet metal into the knurls of the nut, making the nut inseparable from the sheet. Installation requires access to both sides of the panel.
For technical drawings and 3-D models, click on a part number.
Flange | Press-Fit Nuts | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Drill Bit Size | For Min. Panel Thick. | For Max. Panel Hardness | Wd. | Thick. | Ht. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||||
| 2-56 | No. 20 | 0.04" | Brinell 125, Rockwell B70 | 3/16" | 0.01" | 0.036" | 5 | 000000000 | 00000 |
| 2-56 | No. 20 | 0.062" | Brinell 125, Rockwell B70 | 3/16" | 0.02" | 0.058" | 5 | 000000000 | 0000 |
| 2-56 | No. 20 | 0.125" | Brinell 125, Rockwell B70 | 3/16" | 0.03" | 0.117" | 5 | 000000000 | 0000 |
| 4-40 | No. 20 | 0.04" | Brinell 125, Rockwell B70 | 3/16" | 0.01" | 0.036" | 25 | 000000000 | 00000 |
| 4-40 | No. 20 | 0.062" | Brinell 125, Rockwell B70 | 3/16" | 0.02" | 0.058" | 25 | 000000000 | 00000 |
| 4-40 | No. 20 | 0.125" | Brinell 125, Rockwell B70 | 3/16" | 0.03" | 0.117" | 10 | 000000000 | 00000 |
| 6-32 | 13/64" | 0.062" | Brinell 125, Rockwell B70 | 1/4" | 0.02" | 0.058" | 25 | 000000000 | 00000 |
| 6-32 | 13/64" | 0.125" | Brinell 125, Rockwell B70 | 1/4" | 0.03" | 0.117" | 25 | 000000000 | 00000 |
| 6-32 | 13/64" | 0.187" | Brinell 125, Rockwell B70 | 1/4" | 0.03" | 0.177" | 5 | 000000000 | 0000 |
| 8-32 | 17/64" | 0.062" | Brinell 125, Rockwell B70 | 5/16" | 0.02" | 0.058" | 25 | 000000000 | 00000 |
| 8-32 | 17/64" | 0.125" | Brinell 125, Rockwell B70 | 5/16" | 0.03" | 0.117" | 10 | 000000000 | 00000 |
| 8-32 | 17/64" | 0.187" | Brinell 125, Rockwell B70 | 5/16" | 0.03" | 0.177" | 5 | 000000000 | 0000 |
| 10-32 | 17/64" | 0.093" | Brinell 125, Rockwell B70 | 5/16" | 0.03" | 0.085" | 25 | 000000000 | 00000 |
| 10-32 | 17/64" | 0.125" | Brinell 125, Rockwell B70 | 5/16" | 0.03" | 0.117" | 25 | 000000000 | 00000 |
| 10-32 | 17/64" | 0.187" | Brinell 125, Rockwell B70 | 5/16" | 0.03" | 0.177" | 5 | 000000000 | 00000 |
| 1/4"-20 | W | 0.125" | Brinell 125, Rockwell B70 | 7/16" | 0.03" | 0.117" | 10 | 000000000 | 0000 |
| 1/4"-20 | W | 0.187" | Brinell 125, Rockwell B70 | 7/16" | 0.03" | 0.177" | 10 | 000000000 | 00000 |
| 1/4"-20 | W | 0.375" | Brinell 125, Rockwell B70 | 7/16" | 0.03" | 0.359" | 10 | 000000000 | 00000 |
Thread | Flange | Press-Fit Nuts | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | Drill Bit Size | For Min. Panel Thick., mm | For Max. Panel Hardness | Wd., mm | Thick., mm | Ht., mm | PEM® Part Number | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||||||
| M2 | 0.4 | 4.4 mm | 1.53 | Brinell 125, Rockwell B70 | 4.8 | 0.5 | 1.53 | F-M2-1 | 10 | 000000000 | 00000 |
| M2 | 0.4 | 4.4 mm | 2.3 | Brinell 125, Rockwell B70 | 4.8 | 0.6 | 2.3 | F-M2-2 | 10 | 000000000 | 0000 |
| M2.5 | 0.45 | 4.4 mm | 1.53 | Brinell 125, Rockwell B70 | 4.8 | 0.5 | 1.53 | F-M2.5-1 | 25 | 000000000 | 00000 |
| M2.5 | 0.45 | 4.4 mm | 2.3 | Brinell 125, Rockwell B70 | 4.8 | 0.6 | 2.3 | F-M2.5-2 | 10 | 000000000 | 0000 |
| M3 | 0.5 | 4.4 mm | 1.53 | Brinell 125, Rockwell B70 | 4.8 | 0.5 | 1.53 | F-M3-1 | 25 | 000000000 | 00000 |
| M3 | 0.5 | 4.4 mm | 2.32 | Brinell 125, Rockwell B70 | 4.8 | 0.6 | 2.3 | F-M3-2 | 25 | 000000000 | 00000 |
| M4 | 0.7 | 7.4 mm | 1.53 | Brinell 125, Rockwell B70 | 7.9 | 0.5 | 1.53 | F-M4-1 | 10 | 000000000 | 0000 |
| M4 | 0.7 | 7.4 mm | 2.32 | Brinell 125, Rockwell B70 | 7.9 | 0.6 | 2.3 | F-M4-2 | 10 | 000000000 | 0000 |
| M5 | 0.8 | 7.9 mm | 1.53 | Brinell 125, Rockwell B70 | 8.7 | 0.5 | 1.53 | F-M5-1 | 10 | 000000000 | 0000 |
| M5 | 0.8 | 7.9 mm | 2.32 | Brinell 125, Rockwell B70 | 8.7 | 0.6 | 2.3 | F-M5-2 | 10 | 000000000 | 0000 |
| M6 | 1 | 8.7 mm | 3.18 | Brinell 125, Rockwell B70 | 9.5 | 0.8 | 3.05 | F-M6-3 | 10 | 000000000 | 00000 |
| M6 | 1 | 8.7 mm | 3.96 | Brinell 125, Rockwell B70 | 9.5 | 1 | 3.84 | F-M6-4 | 10 | 000000000 | 00000 |
| M6 | 1 | 8.7 mm | 4.75 | Brinell 125, Rockwell B70 | 9.5 | 1.2 | 4.63 | F-M6-5 | 5 | 000000000 | 0000 |
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 |
| 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"-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"-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"-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"-20 | 3/4" | 21/64" | 21/32" | 0.05" | 43/64" | ASME B1.1 | 25 | 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 |
| 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 |
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 |
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 |
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 |