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Steel Press-Fit Nuts for Sheet Metal
Add permanent threads to sheet metal, like weld nuts, but without the setup and mess. A zinc plating on these steel press-fit nuts helps prevent rust 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 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Head | Installation Tool | ||||||||||
| Thread Size  | Drill Bit Size | For Min. Panel Thick. | For Max. Panel Hardness | OD | Ht. | PEM® Part No. | Pkg. Qty. | Pkg. | Each | ||
Zinc-Plated Steel | |||||||||||
| 2-56 | No. 19 | 0.03" | Brinell 150, Rockwell B80 | 0.25" | 0.07" | S-256-0ZI | 25 | 000000000 | 00000 | 000000000 | 0000000 |
| 2-56 | No. 19 | 0.04" | Brinell 150, Rockwell B80 | 0.25" | 0.07" | S-256-1ZI | 25 | 000000000 | 0000 | 000000000 | 000000 |
| 2-56 | No. 19 | 0.056" | Brinell 150, Rockwell B80 | 0.25" | 0.07" | S-256-2ZI | 25 | 000000000 | 0000 | 000000000 | 000000 |
Stainless Steel Press-Fit Nuts for Sheet Metal
Create permanent, corrosion-resistant threads in sheet metal without the setup and mess of weld nuts. Made of 18-8 stainless steel, these press-fit nuts withstand water and mild chemicals better than zinc-plated steel nuts. 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 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Head | Installation Tool | ||||||||||
| Thread Size | Drill Bit Size | For Min. Panel Thick. | For Max. Panel Hardness | OD | Ht. | PEM® Part No. | Pkg. Qty. | Pkg. | Each | ||
18-8 Stainless Steel | |||||||||||
| 2-56 | No. 19 | 0.03" | Brinell 125, Rockwell B70 | 0.25" | 0.07" | CLS-256-0 | 25 | 000000000 | 00000 | 000000000 | 0000000 |
| 2-56 | No. 19 | 0.04" | Brinell 125, Rockwell B70 | 0.25" | 0.07" | CLS-256-1 | 25 | 000000000 | 0000 | 000000000 | 000000 |
| 2-56 | No. 19 | 0.056" | Brinell 125, Rockwell B70 | 0.25" | 0.07" | CLS-256-2 | 25 | 000000000 | 0000 | 000000000 | 000000 |
| 2-56 | No. 29 | 0.025" | Brinell 125, Rockwell B70 | 0.22" | 0.065" | SMPS-256 | 25 | 000000000 | 0000 | 000000 | 00 |
Stainless Steel Narrow Press-Fit Nuts for Sheet Metal
15% narrower than other press-fit nuts, these add corrosion-resistant threads to sheet metal in tight spaces. Made of stainless steel, these press-fit nuts withstand water and chemicals better than zinc-plated steel nuts. They add permanent threads to thin metal surfaces, 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.
High-Strength A286 Stainless Steel Press-Fit Nuts for Sheet Metal
The strongest and hardest press-fit nuts we offer. In addition to their sturdiness, these A286 stainless steel nuts withstand harsh chemicals. They add permanent threads to sheet metal, like weld nuts but without the setup and mess. Unlike most press-fit nuts, they’re even hard enough to install in stainless steel panels. 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.
Head | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Drill Bit Size | For Min. Panel Thick. | For Max. Panel Hardness | OD | Ht. | PEM® Part No. | Pkg. Qty. | Pkg. | |
A286 Stainless Steel | |||||||||
| 2-56 | 29 | 0.025" | Brinell 192, Rockwell B90 | 0.22" | 0.065" | SMPP-256 | 10 | 000000000 | 00000 |
| 2-56 | 19 | 0.03" | Brinell 192, Rockwell B90 | 0.25" | 0.07" | SP-256-0 | 10 | 000000000 | 0000 |
| 2-56 | 19 | 0.04" | Brinell 192, Rockwell B90 | 0.25" | 0.07" | SP-256-1 | 10 | 000000000 | 0000 |
| 2-56 | 19 | 0.056" | Brinell 192, Rockwell B90 | 0.25" | 0.07" | SP-256-2 | 10 | 000000000 | 0000 |
Aluminum Press-Fit Nuts for Sheet Metal
Add lightweight, corrosion-resistant threads to sheet metal. These aluminum press-fit nuts are one-third the weight of steel press-fit nuts and better withstand wet environments. However, they’re only about half as strong. Use press-fit nuts to add permanent threads to thin metal surfaces, 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.
Press-Fit Nuts | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Head | Installation Tool | ||||||||||
| Thread Size | Drill Bit Size | For Min. Panel Thick. | For Max. Panel Hardness | OD | Ht. | PEM® Part Number | Pkg. Qty. | Pkg. | Each | ||
| 2-56 | No. 19 | 0.04" | Brinell 80, Rockwell B50 | 0.25" | 0.07" | CLA-256-1 | 25 | 000000000 | 00000 | 000000000 | 0000000 |
| 2-56 | No. 19 | 0.056" | Brinell 80, Rockwell B50 | 0.25" | 0.07" | CLA-256-2 | 25 | 000000000 | 0000 | 000000000 | 000000 |
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 |
Nylon-Insert Press-Fit Locknuts for Sheet Metal
A nylon insert in these press-fit locknuts grips threads to prevent screws from loosening while knurls on the bottom hold these locknuts firmly in place. Use these locknuts to add permanent threads to sheet metal, similar to 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 installation tool. The pressure forms your sheet metal into the knurls of the locknut, making the locknut inseparable from the sheet. Installation requires access to both sides of the panel.
18-8 stainless steel locknuts are more corrosion resistant than plated steel locknuts. They resist mild chemicals in addition to water.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Drill Bit Size | For Min. Panel Thick. | For Max. Panel Hardness | Flange Dia. | Head Ht. | Insert Max. Temp., °F | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 2-56 | 1/8" | 0.05" | Brinell 240, Rockwell B100 | 0.17" | 0.08" | 250° | 10 | 000000000 | 000000 |
High-Strength Flush-Mount Press-Fit Nuts for Sheet Metal
Often used in low-clearance areas, these press-fit nuts have a flat hex head that sits flush with the surface of your material once they’re installed. Made from 400-series stainless steel, they add stronger threads to sheet metal than zinc-plated steel or 18-8 stainless steel nuts. However, they’re not as corrosion resistant as 18-8 stainless steel. 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 makes your sheet metal and the nut inseparable—the hex head sits flush with the sheet metal, which melds into the grooves of the nut. Installation requires access to both sides of the panel.
For technical drawings and 3-D models, click on a part number.
Flange | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Drill Bit Size | For Min. Panel Thick. | For Max. Panel Hardness | Wd. | Thick. | Ht. | PEM® Part No. | Pkg. Qty. | Pkg. | |
400 Series Stainless Steel | ||||||||||
| 2-56 | 11/64" | 0.06" | Brinell 180, Rockwell B85 | 3/16" | 0.02" | 0.06" | F4-256-1 | 10 | 000000000 | 00000 |
Installation Tools for Press-Fit Nuts
Use these tools to install press-fit nuts by hand. They include one hand tool, seven hole punches and dies, five fastener anvils, one flat punch, one punch adapter bushing, and one edge-depth guide.
| For Thread Size | Max. Force, lbs. | Wt., lbs. | Each | |
Inch | ||||
|---|---|---|---|---|
| 2-56, 4-40, 6-32, 8-32, 10-24, 10-32 | 2,500 | 2.75 | 000000000 | 0000000 |
Stainless Steel Press-Fit Nuts for Soft Metal and Plastic
Create corrosion-resistant threads in soft metal and plastic panels—these stainless steel press-fit nuts withstand exposure to water and chemicals. Also known as broach-style captive nuts, they add permanent threads to sheets, like weld nuts, but without the setup and mess. Press them into a drilled or punched hole with an arbor press or similar pressure tool. The pressure forms your material 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.
Steel Press-Fit Nuts for Soft Metal and Plastic
Also known as broach-style captive nuts, these steel nuts add permanent threads to soft metal and plastic panels. Press them into a drilled or punched hole with an arbor press or similar pressure tool. The pressure forces the panel into the knurls of the nut, keeping the nut firmly in place. Installation requires access to both sides of the panel. They are tin plated to resist corrosion from chemicals and salt water.
For technical drawings and 3-D models, click on a part number.