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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.

Head | |||||||||
---|---|---|---|---|---|---|---|---|---|
Thread Size | Drill Bit Size | For Min. Panel Thick. | For Max. Panel Hardness | OD | Ht. | PEM® Part No. | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | |||||||||
1/4"-20 | 11/32" | 0.047" | Brinell 150, Rockwell B80 | 0.44" | 0.17" | S-0420-0ZI | 25 | 000000000 | 00000 |
1/4"-20 | 11/32" | 0.056" | Brinell 150, Rockwell B80 | 0.44" | 0.17" | S-0420-1ZI | 25 | 000000000 | 0000 |
1/4"-20 | 11/32" | 0.09" | Brinell 150, Rockwell B80 | 0.44" | 0.17" | S-0420-2ZI | 25 | 000000000 | 0000 |
1/4"-20 | 11/32" | 0.125" | Brinell 150, Rockwell B80 | 0.44" | 0.17" | S-0420-3ZI | 25 | 000000000 | 0000 |
Steel Press-Fit Nuts with Plug for Sheet Metal


A plug on these press-fit nuts protects the threads inside during painting and other finishing processes. Made of rubber, the plug withstands high-temperature treatments such as curing during powder coating. These press-fit nuts 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. When you are ready to use the threads, push the plug through the nut with a tool like a screwdriver.
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. | Plug Material | Max. Temp., °F | Pkg. Qty. | Pkg. | |
Steel | |||||||||||
1/4"-20 | 11/32" | 0.056" | Brinell 150, Rockwell B80 | 0.44" | 0.17" | S-0420-1 | Rubber | 480° | 10 | 000000000 | 00000 |
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.
Head | |||||||||
---|---|---|---|---|---|---|---|---|---|
Thread Size | Drill Bit Size | For Min. Panel Thick. | For Max. Panel Hardness | OD | Ht. | PEM® Part No. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||||
1/4"-20 | 11/32" | 0.047" | Brinell 125, Rockwell B70 | 0.44" | 0.17" | CLS-0420-0 | 10 | 000000000 | 00000 |
1/4"-20 | 11/32" | 0.056" | Brinell 125, Rockwell B70 | 0.44" | 0.17" | CLS-0420-1 | 10 | 000000000 | 0000 |
1/4"-20 | 11/32" | 0.09" | Brinell 125, Rockwell B70 | 0.44" | 0.17" | CLS-0420-2 | 5 | 000000000 | 0000 |
1/4"-20 | 11/32" | 0.125" | Brinell 125, Rockwell B70 | 0.44" | 0.17" | CLS-0420-3 | 5 | 000000000 | 0000 |
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.
Head | |||||||||
---|---|---|---|---|---|---|---|---|---|
Thread Size | Drill Bit Size | For Panel Thick. | For Max. Panel Hardness | OD | Ht. | PEM® Part No. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||||
1/4"-20 | 11/32" | 0.059" to 0.07" | Brinell 125, Rockwell B70 | 0.384" | 0.12" | FEX-0420 | 5 | 000000000 | 00000 |
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 | |||||||||
1/4"-20 | 11/32" | 0.047" | Brinell 192, Rockwell B90 | 0.44" | 0.17" | SP-0420-0 | 1 | 000000000 | 00000 |
1/4"-20 | 11/32" | 0.056" | Brinell 192, Rockwell B90 | 0.44" | 0.17" | SP-0420-1 | 1 | 000000000 | 0000 |
1/4"-20 | 11/32" | 0.09" | Brinell 192, Rockwell B90 | 0.44" | 0.17" | SP-0420-2 | 1 | 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.
Head | |||||||||
---|---|---|---|---|---|---|---|---|---|
Thread Size | Drill Bit Size | For Min. Panel Thick. | For Max. Panel Hardness | OD | Ht. | PEM® Part Number | Pkg. Qty. | Pkg. | |
1/4"-20 | 11/32" | 0.056" | Brinell 80, Rockwell B50 | 0.44" | 0.17" | CLA-0420-1 | 10 | 000000000 | 00000 |
1/4"-20 | 11/32" | 0.091" | Brinell 80, Rockwell B50 | 0.44" | 0.17" | CLA-0420-2 | 10 | 000000000 | 0000 |
1/4"-20 | 11/32" | 0.125" | Brinell 80, Rockwell B50 | 0.44" | 0.17" | CLA-0420-3 | 10 | 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 | |||||||||
1/4"-20 | W | 0.125" | Brinell 125, Rockwell B70 | 7/16" | 0.03" | 0.117" | 10 | 000000000 | 00000 |
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 |
Stainless Steel Aligning Press-Fit Nuts for Sheet Metal

Install corrosion-resistant threads that align with off-center parts. These press-fit nuts have floating threads that account for misalignment, allowing you to insert screws at a slight angle as you fasten two parts together. Made of 18-8 stainless steel, they withstand mild chemicals and can be used in wet and outdoor environments. 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.
Head | Press-Fit Nuts | ||||||||
---|---|---|---|---|---|---|---|---|---|
Thread Size | Drill Bit Size | For Min. Panel Thick. | For Max. Panel Hardness | OD | Ht. | PEM® Part No. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||||
1/4"-20 | 33/64" | 0.054" | Brinell 125, Rockwell B70 | 0.6" | 0.21" | AC-0420-2 | 1 | 000000000 | 00000 |
Steel Aligning Press-Fit Nuts for Sheet Metal

Align off-center parts as you fasten them together—these steel press-fit nuts have floating threads, so you can install bolts at a slight angle. Zinc plating protects them from rust in wet environments. 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.
Head | Press-Fit Nuts | ||||||||
---|---|---|---|---|---|---|---|---|---|
Thread Size | Drill Bit Size | For Min. Panel Thick. | For Max. Panel Hardness | OD | Ht. | PEM® Part No. | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | |||||||||
1/4"-20 | 33/64" | 0.054" | Brinell 125, Rockwell B70 | 0.6" | 0.21" | AS-0420-2 | 5 | 000000000 | 000000 |
Stainless Steel Screw-Locking Aligning Press-Fit Nuts for Sheet Metal

Irregularly shaped threads in these press-fit nuts form a tight grip, preventing screws from backing out in vibration-heavy environments. Use these nuts to install corrosion-resistant threads that align with off-center parts. They have floating threads that account for misalignment, allowing you to insert screws at a slight angle as you fasten two parts together. With a long, extended barrel that’s threaded from end-to-end, these nuts have excellent thread engagement. They’re made of 18-8 stainless steel, so they stand up to mild chemicals and wet and outdoor environments.
Use press-fit nuts 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.
Nuts that meet NASM25027 adhere to National Aerospace Standards for tight tolerances and locking torque.
For technical drawings and 3-D models, click on a part number.


Head | Barrel | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Drill Bit Size | For Min. Panel Thick. | For Max. Panel Hardness | OD | Ht. | Dia. | Ht. | PEM® Part No. | Specifications Met | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||||||||
1/4"-20 | 33/64" | 0.054" | Brinell 125, Rockwell B70 | 0.6" | 0.054" | 11/32" | 5/16" | LAC-0420-2MD | NASM25027 | 1 | 000000000 | 00000 |
Steel Thread-Sealing Closed-End Press-Fit Nuts for Sheet Metal

Thanks to their covered threads, these press-fit nuts protect against leaks and debris. They have a zinc plating to prevent them from rusting in wet environments. Use them to add permanent threads to sheet metal and panels without the setup and mess of weld nuts. For installation, make sure you have access to both sides of your workpiece. Line them up with a drilled or punched hole that suits their size, then press them down 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. Also known as clinch-style captive nuts.
For technical drawings and 3-D models, click on a part number.
Stainless Steel Thread-Sealing Closed-End Press-Fit Nuts for Sheet Metal

To protect against leaks and debris, these press-fit nuts have enclosed threads. Their 18-8 stainless steel construction resists corrosion from mild chemicals and water better than zinc-plated steel nuts. Use them to add permanent threads to sheet metal and panels without the setup and mess of weld nuts.
For installation, make sure you have access to both sides of your workpiece. Line them up with a drilled or punched hole that suits their size, then push them down with an arbor press or similar pressure tool. Once the pressure melds the knurls of these nuts with the material, they’re inseparable. Also known as clinch-style captive nuts.
For technical drawings and 3-D models, click on a part number.
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.
Head | |||||||||
---|---|---|---|---|---|---|---|---|---|
Thread Size | Drill Bit Size | For Min. Panel Thick. | For Max. Panel Hardness | OD | Ht. | PEM® Part No. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||||
1/4"-20 | 21/64" | 0.06" | Brinell 125, Rockwell B70 | 0.44" | 0.24" | KFS2-0420 | 10 | 000000000 | 000000 |