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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.
Inch
Installed
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 |
Metric
Installed
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 |