About Nuts, Materials, and Finishes
More
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 | OD, mm | Wd., mm | Ht., mm | PEM® Part No. | Pkg. Qty. | Pkg. | Each | ||
Zinc-Plated Steel | |||||||||||||
Round Head | |||||||||||||
M2.5 | 0.45 | 4.2 mm | 0.8 | Brinell 150, Rockwell B80 | 6.35 | __ | 1.5 | S-M2.5-0ZI | 25 | 000000000 | 00000 | 000000000 | 0000000 |
M2.5 | 0.45 | 4.2 mm | 1 | Brinell 150, Rockwell B80 | 6.35 | __ | 1.5 | S-M2.5-1ZI | 25 | 000000000 | 0000 | 000000000 | 000000 |
M2.5 | 0.45 | 4.2 mm | 1.4 | Brinell 150, Rockwell B80 | 6.35 | __ | 1.5 | S-M2.5-2ZI | 25 | 000000000 | 0000 | 000000000 | 000000 |
Hex Head | |||||||||||||
M2.5 | 0.45 | 4.5 mm | 1 | Not Rated | __ | 5.5 | 2.1 | __ | 10 | 000000000 | 0000 | 000000000 | 000000 |
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.
Press-Fit Nuts | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread | Head | Installation Tool | ||||||||||
Size | Pitch, mm | Drill Bit Size | For Min. Panel Thick., mm | For Max. Panel Hardness | OD, mm | Ht., mm | PEM® Part No. | Pkg. Qty. | Pkg. | Each | ||
18-8 Stainless Steel | ||||||||||||
Round Head | ||||||||||||
M2.5 | 0.45 | 3.8 mm | 0.64 | Brinell 125, Rockwell B70 | 5.6 | 1.4 | SMPS-M2.5 | 25 | 000000000 | 00000 | 000000 | 00 |
M2.5 | 0.45 | 4.2 mm | 0.8 | Brinell 125, Rockwell B70 | 6.35 | 1.5 | CLS-M2.5-0 | 25 | 000000000 | 0000 | 000000000 | 0000000 |
M2.5 | 0.45 | 4.2 mm | 1 | Brinell 125, Rockwell B70 | 6.35 | 1.5 | CLS-M2.5-1 | 25 | 000000000 | 0000 | 000000000 | 000000 |
M2.5 | 0.45 | 4.2 mm | 1.4 | Brinell 125, Rockwell B70 | 6.35 | 1.5 | CLS-M2.5-2 | 25 | 000000000 | 0000 | 000000000 | 000000 |
M2.5 | 0.45 | 4.2 mm | 2.29 | Brinell 150, Rockwell B80 | 6.35 | 1.5 | __ | 25 | 000000000 | 0000 | 000000 | 00 |
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.
Thread | Head | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Size | Pitch, mm | Drill Bit Size | For Min. Panel Thick., mm | For Max. Panel Hardness | OD, mm | Ht., mm | PEM® Part No. | Pkg. Qty. | Pkg. | |
A286 Stainless Steel | ||||||||||
M2.5 | 0.45 | 3.8 mm | 0.64 | Brinell 192, Rockwell B90 | 5.6 | 1.4 | SMPP-M2.5 | 10 | 000000000 | 00000 |
M2.5 | 0.45 | 4.2 mm | 0.8 | Brinell 192, Rockwell B90 | 6.35 | 1.5 | SP-M2.5-0 | 5 | 000000000 | 0000 |
M2.5 | 0.45 | 4.2 mm | 1 | Brinell 192, Rockwell B90 | 6.35 | 1.5 | SP-M2.5-1 | 5 | 000000000 | 0000 |
M2.5 | 0.45 | 4.2 mm | 1.4 | Brinell 192, Rockwell B90 | 6.35 | 1.5 | SP-M2.5-2 | 5 | 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.
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 | |||||||||||
M2.5 | 0.45 | 4.4 mm | 1.53 | Brinell 125, Rockwell B70 | 4.8 | 0.5 | 1.53 | F-M2.5-1 | 25 | 000000000 | 000000 |
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 |
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.

Thread | Flange | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Size | Pitch, mm | Drill Bit Size | For Min. Panel Thick., mm | For Max. Panel Hardness | Wd., mm | Thick., mm | Ht., mm | PEM® Part No. | Pkg. Qty. | Pkg. | |
400 Series Stainless Steel | |||||||||||
M2.5 | 0.45 | 4.4 mm | 1.53 | Brinell 180, Rockwell B85 | 4.8 | 0.5 | 1.53 | F4-M2.5-1 | 10 | 000000000 | 00000 |
M2.5 | 0.45 | 4.4 mm | 2.32 | Brinell 180, Rockwell B85 | 4.8 | 0.6 | 2.3 | F4-M2.5-2 | 10 | 000000000 | 0000 |
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 | |
Metric | ||||
---|---|---|---|---|
M2, M2.5, M3, M3.5, M4, M5 | 2,500 | 2.75 | 000000000 | 0000000 |
Metric Stainless Steel Press-Fit Nuts for Soft Metal and Plastic

Add permanent metric threads that resist corrosion to a panel. These nuts are 18-8 stainless steel, so they withstand exposure to mild chemicals and water better than zinc-plated steel nuts. Also known as broach-style captive nuts, they work similarly to weld nuts but without the mess. Press them into a drilled or punched hole using 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.
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.