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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 |
3-48 | No. 19 | 0.04" | Brinell 150, Rockwell B80 | 0.25" | 0.07" | __ | 25 | 000000000 | 00000 | 000000 | 00 |
4-40 | No. 19 | 0.03" | Brinell 150, Rockwell B80 | 0.25" | 0.07" | S-440-0ZI | 50 | 000000000 | 0000 | 000000000 | 000000 |
4-40 | No. 19 | 0.04" | Brinell 150, Rockwell B80 | 0.25" | 0.07" | S-440-1ZI | 50 | 000000000 | 0000 | 000000000 | 000000 |
4-40 | No. 19 | 0.056" | Brinell 150, Rockwell B80 | 0.25" | 0.07" | S-440-2ZI | 50 | 000000000 | 0000 | 000000000 | 000000 |
4-40 | No. 19 | 0.09" | Brinell 150, Rockwell B80 | 0.25" | 0.07" | S-440-3ZI | 25 | 000000000 | 0000 | 000000000 | 000000 |
6-32 | 3/16" | 0.03" | Brinell 150, Rockwell B80 | 0.28" | 0.07" | S-632-0ZI | 50 | 000000000 | 0000 | 000000000 | 000000 |
6-32 | 3/16" | 0.04" | Brinell 150, Rockwell B80 | 0.28" | 0.07" | S-632-1ZI | 50 | 000000000 | 0000 | 000000000 | 000000 |
6-32 | 3/16" | 0.056" | Brinell 150, Rockwell B80 | 0.28" | 0.07" | S-632-2ZI | 50 | 000000000 | 0000 | 000000000 | 000000 |
6-32 | 3/16" | 0.09" | Brinell 150, Rockwell B80 | 0.28" | 0.07" | S-632-3ZI | 50 | 000000000 | 0000 | 000000000 | 000000 |
8-32 | No. 3 | 0.03" | Brinell 150, Rockwell B80 | 0.31" | 0.09" | S-832-0ZI | 50 | 000000000 | 0000 | 000000000 | 000000 |
8-32 | No. 3 | 0.04" | Brinell 150, Rockwell B80 | 0.31" | 0.09" | S-832-1ZI | 50 | 000000000 | 0000 | 000000000 | 000000 |
8-32 | No. 3 | 0.056" | Brinell 150, Rockwell B80 | 0.31" | 0.09" | S-832-2ZI | 50 | 000000000 | 0000 | 000000000 | 000000 |
8-32 | No. 3 | 0.09" | Brinell 150, Rockwell B80 | 0.31" | 0.09" | S-832-3ZI | 25 | 000000000 | 0000 | 000000000 | 000000 |
10-24 | 1/4" | 0.03" | Brinell 150, Rockwell B80 | 0.34" | 0.09" | SS-024-0ZI | 50 | 000000000 | 0000 | 000000000 | 000000 |
10-24 | 1/4" | 0.04" | Brinell 150, Rockwell B80 | 0.34" | 0.09" | SS-024-1ZI | 50 | 000000000 | 0000 | 000000000 | 000000 |
10-24 | 1/4" | 0.056" | Brinell 150, Rockwell B80 | 0.34" | 0.09" | SS-024-2ZI | 50 | 000000000 | 0000 | 000000000 | 000000 |
10-24 | 1/4" | 0.09" | Brinell 150, Rockwell B80 | 0.34" | 0.09" | SS-024-3ZI | 25 | 000000000 | 0000 | 000000000 | 000000 |
10-32 | 1/4" | 0.03" | Brinell 150, Rockwell B80 | 0.34" | 0.09" | SS-032-0ZI | 50 | 000000000 | 0000 | 000000000 | 000000 |
10-32 | 1/4" | 0.04" | Brinell 150, Rockwell B80 | 0.34" | 0.09" | SS-032-1ZI | 25 | 000000000 | 0000 | 000000000 | 000000 |
10-32 | 1/4" | 0.056" | Brinell 150, Rockwell B80 | 0.34" | 0.09" | SS-032-2ZI | 50 | 000000000 | 0000 | 000000000 | 000000 |
10-32 | 1/4" | 0.09" | Brinell 150, Rockwell B80 | 0.34" | 0.09" | SS-032-3ZI | 25 | 000000000 | 0000 | 000000000 | 000000 |
12-24 | J | 0.04" | Brinell 150, Rockwell B80 | 0.37" | 0.13" | S-1224-1ZI | 10 | 000000000 | 0000 | 000000 | 00 |
12-24 | J | 0.056" | Brinell 150, Rockwell B80 | 0.37" | 0.13" | __ | 10 | 000000000 | 0000 | 000000 | 00 |
12-24 | J | 0.09" | Brinell 150, Rockwell B80 | 0.37" | 0.13" | S-1224-3ZI | 10 | 000000000 | 0000 | 000000 | 00 |
1/4"-20 | 11/32" | 0.047" | Brinell 150, Rockwell B80 | 0.44" | 0.17" | S-0420-0ZI | 25 | 000000000 | 0000 | 000000 | 00 |
1/4"-20 | 11/32" | 0.056" | Brinell 150, Rockwell B80 | 0.44" | 0.17" | S-0420-1ZI | 25 | 000000000 | 0000 | 000000 | 00 |
1/4"-20 | 11/32" | 0.09" | Brinell 150, Rockwell B80 | 0.44" | 0.17" | S-0420-2ZI | 25 | 000000000 | 0000 | 000000 | 00 |
1/4"-20 | 11/32" | 0.125" | Brinell 150, Rockwell B80 | 0.44" | 0.17" | S-0420-3ZI | 25 | 000000000 | 0000 | 000000 | 00 |
1/4"-28 | 11/32" | 0.056" | Brinell 150, Rockwell B80 | 0.44" | 0.17" | S-0428-1ZI | 10 | 000000000 | 0000 | 000000 | 00 |
1/4"-28 | 11/32" | 0.09" | Brinell 150, Rockwell B80 | 0.44" | 0.17" | S-0428-2ZI | 10 | 000000000 | 0000 | 000000 | 00 |
1/4"-28 | 11/32" | 0.125" | Brinell 150, Rockwell B80 | 0.44" | 0.17" | __ | 10 | 000000000 | 0000 | 000000 | 00 |
5/16"-18 | Z | 0.056" | Brinell 150, Rockwell B80 | 0.5" | 0.23" | S-0518-1ZI | 10 | 000000000 | 0000 | 000000 | 00 |
5/16"-18 | Z | 0.09" | Brinell 150, Rockwell B80 | 0.5" | 0.23" | S-0518-2ZI | 10 | 000000000 | 0000 | 000000 | 00 |
5/16"-18 | Z | 0.125" | Brinell 150, Rockwell B80 | 0.5" | 0.23" | S-0518-3ZI | 10 | 000000000 | 0000 | 000000 | 00 |
5/16"-24 | Z | 0.056" | Brinell 150, Rockwell B80 | 0.5" | 0.23" | S-0524-1ZI | 10 | 000000000 | 0000 | 000000 | 00 |
5/16"-24 | Z | 0.09" | Brinell 150, Rockwell B80 | 0.5" | 0.23" | S-0524-2ZI | 10 | 000000000 | 0000 | 000000 | 00 |
5/16"-24 | Z | 0.125" | Brinell 150, Rockwell B80 | 0.5" | 0.23" | __ | 10 | 000000000 | 0000 | 000000 | 00 |
3/8"-16 | 1/2" | 0.09" | Brinell 150, Rockwell B80 | 0.56" | 0.27" | S-0616-1ZI | 5 | 000000000 | 0000 | 000000 | 00 |
3/8"-16 | 1/2" | 0.125" | Brinell 150, Rockwell B80 | 0.56" | 0.27" | S-0616-2ZI | 5 | 000000000 | 0000 | 000000 | 00 |
3/8"-16 | 1/2" | 0.25" | Brinell 150, Rockwell B80 | 0.56" | 0.27" | S-0616-3ZI | 5 | 000000000 | 0000 | 000000 | 00 |
3/8"-24 | 1/2" | 0.09" | Brinell 150, Rockwell B80 | 0.56" | 0.27" | __ | 5 | 000000000 | 0000 | 000000 | 00 |
3/8"-24 | 1/2" | 0.125" | Brinell 150, Rockwell B80 | 0.56" | 0.27" | S-0624-2ZI | 5 | 000000000 | 0000 | 000000 | 00 |
3/8"-24 | 1/2" | 0.25" | Brinell 150, Rockwell B80 | 0.56" | 0.27" | __ | 5 | 000000000 | 0000 | 000000 | 00 |
1/2"-13 | 21/32" | 0.125" | Brinell 150, Rockwell B80 | 0.81" | 0.36" | S-0813-1ZI | 1 | 000000000 | 0000 | 000000 | 00 |
1/2"-13 | 21/32" | 0.25" | Brinell 150, Rockwell B80 | 0.81" | 0.36" | S-0813-2ZI | 1 | 000000000 | 0000 | 000000 | 00 |
1/2"-20 | 21/32" | 0.125" | Brinell 150, Rockwell B80 | 0.81" | 0.36" | S-0820-1ZI | 1 | 000000000 | 0000 | 000000 | 00 |
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 | 0.4 | 4.2 mm | 0.8 | Brinell 150, Rockwell B80 | 6.35 | __ | 1.5 | S-M2-0ZI | 25 | 000000000 | 00000 | 000000000 | 0000000 |
M2 | 0.4 | 4.2 mm | 1 | Brinell 150, Rockwell B80 | 6.35 | __ | 1.5 | S-M2-1ZI | 25 | 000000000 | 0000 | 000000000 | 000000 |
M2 | 0.4 | 4.2 mm | 1.4 | Brinell 150, Rockwell B80 | 6.35 | __ | 1.5 | S-M2-2ZI | 25 | 000000000 | 0000 | 000000000 | 000000 |
M2.5 | 0.45 | 4.2 mm | 0.8 | Brinell 150, Rockwell B80 | 6.35 | __ | 1.5 | S-M2.5-0ZI | 25 | 000000000 | 0000 | 000000000 | 000000 |
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 |
M3 | 0.5 | 4.2 mm | 0.8 | Brinell 150, Rockwell B80 | 6.35 | __ | 1.5 | S-M3-0ZI | 25 | 000000000 | 0000 | 000000000 | 000000 |
M3 | 0.5 | 4.2 mm | 1 | Brinell 150, Rockwell B80 | 6.35 | __ | 1.5 | S-M3-1ZI | 25 | 000000000 | 0000 | 000000000 | 000000 |
M3 | 0.5 | 4.2 mm | 1.4 | Brinell 150, Rockwell B80 | 6.35 | __ | 1.5 | S-M3-2ZI | 25 | 000000000 | 0000 | 000000000 | 000000 |
M3 | 0.5 | 4.2 mm | 2.29 | Brinell 150, Rockwell B80 | 6.35 | __ | 1.5 | __ | 25 | 000000000 | 0000 | 000000 | 00 |
M3.5 | 0.6 | 4.8 mm | 0.8 | Brinell 150, Rockwell B80 | 7.11 | __ | 1.5 | S-M3.5-0ZI | 25 | 000000000 | 0000 | 000000 | 00 |
M3.5 | 0.6 | 4.8 mm | 1 | Brinell 150, Rockwell B80 | 7.11 | __ | 1.5 | S-M3.5-1ZI | 25 | 000000000 | 0000 | 000000 | 00 |
M3.5 | 0.6 | 4.8 mm | 1.4 | Brinell 150, Rockwell B80 | 7.11 | __ | 1.5 | S-M3.5-2ZI | 25 | 000000000 | 0000 | 000000 | 00 |
M4 | 0.7 | 5.4 mm | 0.8 | Brinell 150, Rockwell B80 | 7.87 | __ | 2 | S-M4-0ZI | 25 | 000000000 | 0000 | 000000000 | 000000 |
M4 | 0.7 | 5.4 mm | 1 | Brinell 150, Rockwell B80 | 7.87 | __ | 2 | S-M4-1ZI | 25 | 000000000 | 0000 | 000000000 | 000000 |
M4 | 0.7 | 5.4 mm | 1.4 | Brinell 150, Rockwell B80 | 7.87 | __ | 2 | S-M4-2ZI | 25 | 000000000 | 0000 | 000000000 | 000000 |
M4 | 0.7 | 5.4 mm | 2.29 | Brinell 150, Rockwell B80 | 7.87 | __ | 2 | __ | 25 | 000000000 | 0000 | 000000 | 00 |
M5 | 0.8 | 6.4 mm | 0.8 | Brinell 150, Rockwell B80 | 8.64 | __ | 2 | SS-M5-0ZI | 25 | 000000000 | 0000 | 000000000 | 000000 |
M5 | 0.8 | 6.4 mm | 1 | Brinell 150, Rockwell B80 | 8.64 | __ | 2 | SS-M5-1ZI | 25 | 000000000 | 0000 | 000000000 | 000000 |
M5 | 0.8 | 6.4 mm | 1.4 | Brinell 150, Rockwell B80 | 8.64 | __ | 2 | SS-M5-2ZI | 25 | 000000000 | 0000 | 000000000 | 000000 |
M5 | 0.8 | 6.4 mm | 2.29 | Brinell 150, Rockwell B80 | 8.64 | __ | 2 | __ | 25 | 000000000 | 0000 | 000000 | 00 |
M6 | 1 | 8.8 mm | 0.92 | Brinell 150, Rockwell B80 | 11.18 | __ | 4.08 | S-M6-00ZI | 25 | 000000000 | 0000 | 000000 | 00 |
M6 | 1 | 8.8 mm | 1.2 | Brinell 150, Rockwell B80 | 11.18 | __ | 4.08 | S-M6-0ZI | 10 | 000000000 | 0000 | 000000 | 00 |
M6 | 1 | 8.8 mm | 1.4 | Brinell 150, Rockwell B80 | 11.18 | __ | 4.08 | S-M6-1ZI | 10 | 000000000 | 0000 | 000000 | 00 |
M6 | 1 | 8.8 mm | 2.29 | Brinell 150, Rockwell B80 | 11.18 | __ | 4.08 | S-M6-2ZI | 10 | 000000000 | 0000 | 000000 | 00 |
M6 | 1 | 8.8 mm | 3.18 | Brinell 150, Rockwell B80 | 11.18 | __ | 4.08 | __ | 10 | 000000000 | 0000 | 000000 | 00 |
M8 | 1.25 | 10.5 mm | 1.4 | Brinell 150, Rockwell B80 | 12.7 | __ | 5.47 | S-M8-1ZI | 10 | 000000000 | 0000 | 000000 | 00 |
M8 | 1.25 | 10.5 mm | 2.29 | Brinell 150, Rockwell B80 | 12.7 | __ | 5.47 | S-M8-2ZI | 10 | 000000000 | 0000 | 000000 | 00 |
M8 | 1.25 | 10.5 mm | 3.18 | Brinell 150, Rockwell B80 | 12.7 | __ | 5.47 | __ | 10 | 000000000 | 0000 | 000000 | 00 |
M10 | 1.5 | 14.0 mm | 2.29 | Brinell 150, Rockwell B80 | 17.35 | __ | 7.48 | S-M10-1ZI | 5 | 000000000 | 0000 | 000000 | 00 |
M10 | 1.5 | 14.0 mm | 3.18 | Brinell 150, Rockwell B80 | 17.35 | __ | 7.48 | S-M10-2ZI | 5 | 000000000 | 0000 | 000000 | 00 |
M10 | 1.5 | 14.0 mm | 6.4 | Brinell 150, Rockwell B80 | 17.35 | __ | 7.48 | __ | 5 | 000000000 | 0000 | 000000 | 00 |
M12 | 1.75 | 17.0 mm | 3.18 | Brinell 150, Rockwell B80 | 20.57 | __ | 8.5 | S-M12-1ZI | 5 | 000000000 | 0000 | 000000 | 00 |
M12 | 1.75 | 17.0 mm | 6.4 | Brinell 150, Rockwell B80 | 20.57 | __ | 8.5 | __ | 5 | 000000000 | 0000 | 000000 | 00 |
Hex Head | |||||||||||||
M2 | 0.4 | 4.5 mm | 1 | Not Rated | __ | 5.5 | 2.1 | __ | 10 | 000000000 | 0000 | 000000000 | 000000 |
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 |
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 | |||||||||||
10-32 | 1/4" | 0.056" | Brinell 150, Rockwell B80 | 0.34" | 0.09" | SS-032-2 | Rubber | 480° | 25 | 000000000 | 00000 |
1/4"-20 | 11/32" | 0.056" | Brinell 150, Rockwell B80 | 0.44" | 0.17" | S-0420-1 | Rubber | 480° | 10 | 000000000 | 0000 |
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 | |||||||||
4-40 | L | 0.054" | Brinell 125, Rockwell B70 | 0.36" | 0.13" | AS-440-2 | 5 | 000000000 | 00000 |
6-32 | 21/64" | 0.054" | Brinell 125, Rockwell B70 | 0.39" | 0.13" | AS-632-2 | 5 | 000000000 | 0000 |
8-32 | U | 0.054" | Brinell 125, Rockwell B70 | 0.44" | 0.13" | AS-832-2 | 5 | 000000000 | 0000 |
10-32 | 13/32" | 0.054" | Brinell 125, Rockwell B70 | 0.47" | 0.17" | AS-032-2 | 5 | 000000000 | 0000 |
1/4"-20 | 33/64" | 0.054" | Brinell 125, Rockwell B70 | 0.6" | 0.21" | AS-0420-2 | 5 | 000000000 | 00000 |
Thread | Head | Press-Fit Nuts | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
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. | |
Zinc-Plated Steel | ||||||||||
M3 | 0.5 | 7.4 mm | 1.38 | Brinell 125, Rockwell B70 | 9.14 | 3.31 | AS-M3-2 | 5 | 000000000 | 00000 |
M4 | 0.7 | 9.4 mm | 1.38 | Brinell 125, Rockwell B70 | 11.18 | 3.31 | AS-M4-2 | 5 | 000000000 | 0000 |
M5 | 0.8 | 10.3 mm | 1.38 | Brinell 125, Rockwell B70 | 11.94 | 4.32 | AS-M5-2 | 5 | 000000000 | 00000 |
M6 | 1 | 13.1 mm | 1.38 | Brinell 125, Rockwell B70 | 15.24 | 5.34 | AS-M6-2 | 1 | 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.
Zinc-plated and cadmium yellow-chromate plated steel locknuts resist corrosion in wet environments.
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. | |
Steel | |||||||||
---|---|---|---|---|---|---|---|---|---|
4-40 | 5/32" | 0.05" | Brinell 205, Rockwell B95 | 0.2" | 0.09" | 250° | 10 | 000000000 | 00000 |
6-32 | 3/16" | 0.05" | Brinell 205, Rockwell B95 | 0.28" | 0.13" | 250° | 10 | 000000000 | 0000 |
8-32 | 7/32" | 0.05" | Brinell 205, Rockwell B95 | 0.31" | 0.16" | 250° | 10 | 000000000 | 0000 |
Cadmium Yellow-Chromate Plated Steel | |||||||||
6-32 | 3/16" | 0.05" | Brinell 205, Rockwell B95 | 0.28" | 0.13" | 250° | 10 | 000000000 | 0000 |
10-32 | 1/4" | 0.05" | Brinell 205, Rockwell B95 | 0.34" | 0.18" | 250° | 10 | 000000000 | 0000 |
Thread | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Size | Pitch, mm | Drill Bit Size | For Min. Panel Thick., mm | For Max. Panel Hardness | Flange Dia., mm | Head Ht., mm | Insert Max. Temp., °F | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | ||||||||||
M3 | 0.5 | 6 mm | 1.5 | Brinell 125, Rockwell B70 | 7 | 3 | 250° | 10 | 000000000 | 00000 |
M4 | 0.7 | 7.5 mm | 1.5 | Brinell 125, Rockwell B70 | 8.5 | 4 | 250° | 10 | 000000000 | 0000 |
M5 | 0.8 | 8 mm | 1.5 | Brinell 125, Rockwell B70 | 9 | 4 | 250° | 10 | 000000000 | 0000 |
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.
Head | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Drill Bit Size | For Min. Panel Thick. | For Max. Panel Hardness | OD | Ht. | Lg. | PEM® Part Number | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | ||||||||||
4-40 | 19 | 0.04" | Brinell 150, Rockwell B80 | 0.25" | 0.045" | 0.335" | B-440-1ZI | 5 | 000000000 | 00000 |
6-32 | 3/16" | 0.04" | Brinell 150, Rockwell B80 | 0.28" | 0.045" | 0.335" | B-632-1ZI | 10 | 000000000 | 0000 |
6-32 | 3/16" | 0.056" | Brinell 150, Rockwell B80 | 0.28" | 0.045" | 0.335" | B-632-2ZI | 10 | 000000000 | 0000 |
8-32 | No. 3 | 0.04" | Brinell 150, Rockwell B80 | 0.31" | 0.055" | 0.385" | B-832-1ZI | 10 | 000000000 | 0000 |
8-32 | No. 3 | 0.056" | Brinell 150, Rockwell B80 | 0.31" | 0.055" | 0.385" | B-832-2ZI | 10 | 000000000 | 0000 |
10-32 | 1/4" | 0.04" | Brinell 150, Rockwell B80 | 0.34" | 0.055" | 0.385" | B-032-1ZI | 10 | 000000000 | 0000 |
10-32 | 1/4" | 0.056" | Brinell 150, Rockwell B80 | 0.34" | 0.055" | 0.385" | B-032-2ZI | 10 | 000000000 | 0000 |
1/4"-20 | 11/32" | 0.056" | Brinell 150, Rockwell B80 | 0.43" | 0.06" | 0.5" | B-0420-1ZI | 5 | 000000000 | 0000 |
1/4"-20 | 11/32" | 0.09" | Brinell 150, Rockwell B80 | 0.43" | 0.06" | 0.5" | B-0420-2ZI | 5 | 000000000 | 0000 |
Thread | Head | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Size | Pitch, mm | Drill Bit Size | For Min. Panel Thick., mm | For Max. Panel Hardness | OD, mm | Ht., mm | Lg., mm | PEM® Part Number | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | |||||||||||
M3 | 0.5 | 4.2 mm | 1 | Brinell 150, Rockwell B80 | 6.35 | 1.1 | 8.5 | B-M3-1ZI | 5 | 000000000 | 00000 |
M3 | 0.5 | 4.2 mm | 1.4 | Brinell 150, Rockwell B80 | 6.35 | 1.1 | 8.5 | B-M3-2ZI | 5 | 000000000 | 0000 |
M4 | 0.7 | 5.4 mm | 1 | Brinell 150, Rockwell B80 | 7.95 | 1.4 | 9.8 | B-M4-1ZI | 10 | 000000000 | 0000 |
M4 | 0.7 | 5.4 mm | 1.4 | Brinell 150, Rockwell B80 | 7.95 | 1.4 | 9.8 | B-M4-2ZI | 10 | 000000000 | 0000 |
M5 | 0.8 | 6.4 mm | 1 | Brinell 150, Rockwell B80 | 8.75 | 1.3 | 9.8 | B-M5-1ZI | 10 | 000000000 | 0000 |
M5 | 0.8 | 6.4 mm | 1.4 | Brinell 150, Rockwell B80 | 8.75 | 1.3 | 9.8 | B-M5-2ZI | 10 | 000000000 | 0000 |
M6 | 1 | 8.8 mm | 1.4 | Brinell 150, Rockwell B80 | 11.1 | 1.6 | 12.7 | B-M6-1ZI | 5 | 000000000 | 0000 |
M6 | 1 | 8.8 mm | 2.29 | Brinell 150, Rockwell B80 | 11.1 | 1.6 | 12.7 | B-M6-2ZI | 5 | 000000000 | 0000 |
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.
Press-Fit Nuts | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread | Head | Installation Tool | ||||||||||
Size | Pitch | Drill Bit Size | For Min. Panel Thick. | For Max. Panel Hardness | OD | Ht. | PEM® Part No. | Pkg. Qty. | Pkg. | Each | ||
Tin-Plated Steel | ||||||||||||
2-56 | __ | No. 26 | 0.06" | Brinell 107, Rockwell B60 | 0.21" | 0.07" | KF2-256 | 50 | 000000000 | 000000 | 000000000 | 0000000 |
4-40 | __ | No. 19 | 0.06" | Brinell 107, Rockwell B60 | 0.21" | 0.07" | KF2-440 | 50 | 000000000 | 00000 | 000000000 | 000000 |
6-32 | __ | No. 3 | 0.06" | Brinell 107, Rockwell B60 | 0.28" | 0.07" | KF2-632 | 50 | 000000000 | 00000 | 000000000 | 000000 |
8-32 | __ | 1/4" | 0.06" | Brinell 107, Rockwell B60 | 0.34" | 0.1" | KF2-832 | 25 | 000000000 | 0000 | 000000000 | 000000 |
10-24 | __ | I | 0.06" | Brinell 107, Rockwell B60 | 0.38" | 0.13" | KF2-024 | 25 | 000000000 | 00000 | 000000000 | 000000 |
10-32 | __ | I | 0.06" | Brinell 107, Rockwell B60 | 0.38" | 0.13" | KF2-032 | 25 | 000000000 | 0000 | 000000000 | 000000 |
Metric Tin-Plated Steel | ||||||||||||
M2 | 0.4 mm | 3.7 mm | 1.53mm | Brinell 107, Rockwell B60 | 5.56mm | 1.5mm | KF2-M2-ET | 25 | 000000000 | 0000 | 000000000 | 000000 |
M2.5 | 0.45 mm | 4.2 mm | 1.53mm | Brinell 107, Rockwell B60 | 5.56mm | 1.5mm | KF2-M2.5-ET | 25 | 000000000 | 0000 | 000000000 | 000000 |
M3 | 0.5 mm | 4.2 mm | 1.53mm | Brinell 107, Rockwell B60 | 5.56mm | 1.5mm | KF2-M3-ET | 25 | 000000000 | 0000 | 000000000 | 000000 |
M4 | 0.7 mm | 6.4 mm | 1.53mm | Brinell 107, Rockwell B60 | 8.74mm | 2mm | KF2-M4-ET | 25 | 000000000 | 0000 | 000000000 | 000000 |
M5 | 0.8 mm | 6.9 mm | 1.53mm | Brinell 107, Rockwell B60 | 9.53mm | 3mm | KF2-M5-ET | 25 | 000000000 | 0000 | 000000000 | 000000 |