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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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About Nuts, Materials, and Finishes
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Steel Press-Fit Nuts for Sheet Metal
Also known as clinch style captive nuts, press these into a drilled or punched hole with an arbor press or similar pressure tool. Installation requires access to both sides of the panel. Knurls on the bottom of the nut hold them firmly in place. A zinc plating provides corrosion resistance in wet environments.
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. | OD | Ht. | PEM® Part No. | Pkg. Qty. | Pkg. | Each | ||
Zinc-Plated Steel | ||||||||||
2-56 | No. 19 | 0.03" | 0.25" | 0.07" | S-256-0 | 25 | 000000000 | 000000 | 000000000 | 0000000 |
2-56 | No. 19 | 0.04" | 0.25" | 0.07" | S-256-1 | 25 | 000000000 | 00000 | 000000000 | 000000 |
2-56 | No. 19 | 0.056" | 0.25" | 0.07" | S-256-2 | 25 | 000000000 | 00000 | 000000000 | 000000 |
4-40 | No. 19 | 0.03" | 0.25" | 0.07" | S-440-0 | 50 | 000000000 | 00000 | 000000000 | 000000 |
4-40 | No. 19 | 0.04" | 0.25" | 0.07" | S-440-1 | 50 | 000000000 | 00000 | 000000000 | 000000 |
4-40 | No. 19 | 0.056" | 0.25" | 0.07" | S-440-2 | 50 | 000000000 | 00000 | 000000000 | 000000 |
4-40 | No. 19 | 0.09" | 0.25" | 0.07" | S-440-3 | 25 | 000000000 | 00000 | 000000000 | 000000 |
6-32 | 3/16" | 0.03" | 0.28" | 0.07" | S-632-0 | 50 | 000000000 | 00000 | 000000000 | 000000 |
6-32 | 3/16" | 0.04" | 0.28" | 0.07" | S-632-1 | 50 | 000000000 | 00000 | 000000000 | 000000 |
6-32 | 3/16" | 0.056" | 0.28" | 0.07" | S-632-2 | 50 | 000000000 | 00000 | 000000000 | 000000 |
6-32 | 3/16" | 0.09" | 0.28" | 0.07" | S-632-3 | 50 | 000000000 | 00000 | 000000000 | 000000 |
8-32 | No. 3 | 0.03" | 0.31" | 0.09" | S-832-0 | 50 | 000000000 | 00000 | 000000000 | 000000 |
8-32 | No. 3 | 0.04" | 0.31" | 0.09" | S-832-1 | 50 | 000000000 | 00000 | 000000000 | 000000 |
8-32 | No. 3 | 0.056" | 0.31" | 0.09" | S-832-2 | 50 | 000000000 | 00000 | 000000000 | 000000 |
8-32 | No. 3 | 0.09" | 0.31" | 0.09" | S-832-3 | 25 | 000000000 | 0000 | 000000000 | 000000 |
10-24 | 1/4" | 0.03" | 0.34" | 0.09" | SS-024-0ZI | 50 | 000000000 | 00000 | 000000000 | 000000 |
10-24 | 1/4" | 0.04" | 0.34" | 0.09" | SS-024-1ZI | 50 | 000000000 | 00000 | 000000000 | 000000 |
10-24 | 1/4" | 0.056" | 0.34" | 0.09" | SS-024-2 | 50 | 000000000 | 00000 | 000000000 | 000000 |
10-24 | 1/4" | 0.09" | 0.34" | 0.09" | SS-024-3 | 25 | 000000000 | 00000 | 000000000 | 000000 |
10-32 | 1/4" | 0.03" | 0.34" | 0.09" | SS-032-0 | 50 | 000000000 | 00000 | 000000000 | 000000 |
10-32 | 1/4" | 0.04" | 0.34" | 0.09" | SS-032-1 | 25 | 000000000 | 0000 | 000000000 | 000000 |
10-32 | 1/4" | 0.056" | 0.34" | 0.09" | SS-032-2 | 50 | 000000000 | 00000 | 000000000 | 000000 |
10-32 | 1/4" | 0.09" | 0.34" | 0.09" | SS-032-3 | 25 | 000000000 | 00000 | 000000000 | 000000 |
12-24 | J | 0.04" | 0.37" | 0.13" | S-1224-1ZI | 10 | 000000000 | 00000 | 000000 | 00 |
12-24 | J | 0.09" | 0.37" | 0.13" | S-1224-3ZI | 10 | 000000000 | 0000 | 000000 | 00 |
1/4"-20 | 11/32" | 0.047" | 0.44" | 0.17" | S-0420-0 | 25 | 000000000 | 0000 | 000000 | 00 |
1/4"-20 | 11/32" | 0.056" | 0.44" | 0.17" | S-0420-1 | 25 | 000000000 | 00000 | 000000 | 00 |
1/4"-20 | 11/32" | 0.09" | 0.44" | 0.17" | S-0420-2 | 25 | 000000000 | 00000 | 000000 | 00 |
1/4"-20 | 11/32" | 0.125" | 0.44" | 0.17" | S-0420-3 | 25 | 000000000 | 00000 | 000000 | 00 |
1/4"-28 | 11/32" | 0.056" | 0.44" | 0.17" | S-0428-1ZI | 10 | 000000000 | 0000 | 000000 | 00 |
1/4"-28 | 11/32" | 0.09" | 0.44" | 0.17" | S-0428-2ZI | 10 | 000000000 | 0000 | 000000 | 00 |
5/16"-18 | Z | 0.056" | 0.5" | 0.23" | S-0518-1 | 10 | 000000000 | 0000 | 000000 | 00 |
5/16"-18 | Z | 0.09" | 0.5" | 0.23" | S-0518-2 | 10 | 000000000 | 0000 | 000000 | 00 |
5/16"-18 | Z | 0.125" | 0.5" | 0.23" | S-0518-3 | 10 | 000000000 | 0000 | 000000 | 00 |
5/16"-24 | Z | 0.056" | 0.5" | 0.23" | S-0524-1 | 10 | 000000000 | 00000 | 000000 | 00 |
5/16"-24 | Z | 0.09" | 0.5" | 0.23" | S-0524-2 | 10 | 000000000 | 00000 | 000000 | 00 |
3/8"-16 | 1/2" | 0.09" | 0.56" | 0.27" | S-0616-1 | 5 | 000000000 | 0000 | 000000 | 00 |
3/8"-16 | 1/2" | 0.125" | 0.56" | 0.27" | S-0616-2 | 5 | 000000000 | 0000 | 000000 | 00 |
3/8"-16 | 1/2" | 0.25" | 0.56" | 0.27" | S-0616-3 | 5 | 000000000 | 0000 | 000000 | 00 |
3/8"-24 | 1/2" | 0.125" | 0.56" | 0.27" | S-0624-2ZI | 5 | 000000000 | 00000 | 000000 | 00 |
1/2"-13 | 21/32" | 0.125" | 0.81" | 0.36" | S-0813-1ZI | 1 | 000000000 | 0000 | 000000 | 00 |
1/2"-13 | 21/32" | 0.25" | 0.81" | 0.36" | S-0813-2ZI | 1 | 000000000 | 0000 | 000000 | 00 |
1/2"-20 | 21/32" | 0.125" | 0.81" | 0.36" | S-0820-1ZI | 1 | 000000000 | 0000 | 000000 | 00 |
Metric Steel Press-Fit Nuts for Sheet Metal


Often referred to as clinch style captive nuts, press these into a drilled or punched hole with an arbor press or similar pressure tool. Installation requires access to both sides of the panel. Knurls on the bottom of the nut hold them firmly in place. A zinc plating provides corrosion resistance in wet environments.
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 | OD, mm | Wd., mm | Ht., mm | Pkg. Qty. | Pkg. | Each | ||
Zinc-Plated Steel | |||||||||||
Round Head | |||||||||||
M2 | 0.4 | 4.2 mm | 0.8 | 6.35 | __ | 1.5 | 25 | 000000000 | 000000 | 000000000 | 0000000 |
M2 | 0.4 | 4.2 mm | 1 | 6.35 | __ | 1.5 | 25 | 000000000 | 00000 | 000000000 | 000000 |
M2 | 0.4 | 4.2 mm | 1.4 | 6.35 | __ | 1.5 | 25 | 000000000 | 00000 | 000000000 | 000000 |
M2.5 | 0.45 | 4.2 mm | 0.8 | 6.35 | __ | 1.5 | 25 | 000000000 | 00000 | 000000000 | 000000 |
M2.5 | 0.45 | 4.2 mm | 1 | 6.35 | __ | 1.5 | 25 | 000000000 | 00000 | 000000000 | 000000 |
M2.5 | 0.45 | 4.2 mm | 1.4 | 6.35 | __ | 1.5 | 25 | 000000000 | 00000 | 000000000 | 000000 |
M3 | 0.5 | 4.2 mm | 0.8 | 6.35 | __ | 1.5 | 25 | 000000000 | 0000 | 000000000 | 000000 |
M3 | 0.5 | 4.2 mm | 1 | 6.35 | __ | 1.5 | 25 | 000000000 | 0000 | 000000000 | 000000 |
M3 | 0.5 | 4.2 mm | 1.4 | 6.35 | __ | 1.5 | 25 | 000000000 | 0000 | 000000000 | 000000 |
M3.5 | 0.6 | 4.8 mm | 0.8 | 7.11 | __ | 1.5 | 25 | 000000000 | 0000 | 000000 | 00 |
M3.5 | 0.6 | 4.8 mm | 1 | 7.11 | __ | 1.5 | 25 | 000000000 | 0000 | 000000 | 00 |
M3.5 | 0.6 | 4.8 mm | 1.4 | 7.11 | __ | 1.5 | 25 | 000000000 | 0000 | 000000 | 00 |
M4 | 0.7 | 5.4 mm | 0.8 | 7.87 | __ | 2 | 25 | 000000000 | 0000 | 000000000 | 000000 |
M4 | 0.7 | 5.4 mm | 1 | 7.87 | __ | 2 | 25 | 000000000 | 0000 | 000000000 | 000000 |
M4 | 0.7 | 5.4 mm | 1.4 | 7.87 | __ | 2 | 25 | 000000000 | 0000 | 000000000 | 000000 |
M5 | 0.8 | 6.4 mm | 0.8 | 8.64 | __ | 2 | 25 | 000000000 | 0000 | 000000000 | 000000 |
M5 | 0.8 | 6.4 mm | 1 | 8.64 | __ | 2 | 25 | 000000000 | 0000 | 000000000 | 000000 |
M5 | 0.8 | 6.4 mm | 1.4 | 8.64 | __ | 2 | 25 | 000000000 | 0000 | 000000000 | 000000 |
M6 | 1 | 8.8 mm | 0.92 | 11.18 | __ | 4.08 | 25 | 000000000 | 00000 | 000000 | 00 |
M6 | 1 | 8.8 mm | 1.2 | 11.18 | __ | 4.08 | 10 | 000000000 | 0000 | 000000 | 00 |
M6 | 1 | 8.8 mm | 1.4 | 11.18 | __ | 4.08 | 10 | 000000000 | 0000 | 000000 | 00 |
M6 | 1 | 8.8 mm | 2.29 | 11.18 | __ | 4.08 | 10 | 000000000 | 0000 | 000000 | 00 |
M8 | 1.25 | 10.5 mm | 1.4 | 12.7 | __ | 5.47 | 10 | 000000000 | 0000 | 000000 | 00 |
M8 | 1.25 | 10.5 mm | 2.29 | 12.7 | __ | 5.47 | 10 | 000000000 | 0000 | 000000 | 00 |
M10 | 1.5 | 14.0 mm | 2.29 | 17.35 | __ | 7.48 | 5 | 000000000 | 00000 | 000000 | 00 |
M10 | 1.5 | 14.0 mm | 3.18 | 17.35 | __ | 7.48 | 5 | 000000000 | 00000 | 000000 | 00 |
M12 | 1.75 | 17 mm | 3.18 | 20.57 | __ | 8.5 | 5 | 000000000 | 00000 | 000000 | 00 |
Hex Head | |||||||||||
M2 | 0.4 | 4.5 mm | 1 | __ | 5.5 | 2.1 | 10 | 000000000 | 0000 | 000000000 | 000000 |
M2.5 | 0.45 | 4.5 mm | 1 | __ | 5.5 | 2.1 | 10 | 000000000 | 0000 | 000000000 | 000000 |
M3 | 0.5 | 4.5 mm | 1 | __ | 5.5 | 2.1 | 25 | 000000000 | 00000 | 000000000 | 000000 |
M3 | 0.5 | 4.5 mm | 2 | __ | 5.5 | 1.2 | 10 | 000000000 | 0000 | 000000000 | 000000 |
M4 | 0.7 | 5.5 mm | 1 | __ | 7 | 2.3 | 25 | 000000000 | 00000 | 000000000 | 000000 |
M4 | 0.7 | 5.5 mm | 2 | __ | 7 | 2.7 | 25 | 000000000 | 00000 | 000000000 | 000000 |
M5 | 0.8 | 6.5 mm | 1 | __ | 8 | 3.1 | 25 | 000000000 | 00000 | 000000000 | 000000 |
M5 | 0.8 | 6.5 mm | 2 | __ | 8 | 3.2 | 25 | 000000000 | 00000 | 000000000 | 000000 |
M6 | 1 | 8 mm | 1 | __ | 10 | 4.1 | 10 | 000000000 | 0000 | 000000 | 00 |
M6 | 1 | 8 mm | 2 | __ | 10 | 3.2 | 10 | 000000000 | 0000 | 000000 | 00 |
M8 | 1.25 | 10 mm | 2 | __ | 13 | 4.7 | 10 | 000000000 | 0000 | 000000 | 00 |
M10 | 1.5 | 12.5 mm | 2 | __ | 15 | 6.2 | 5 | 000000000 | 0000 | 000000 | 00 |
M12 | 1.75 | 14.5 mm | 3 | __ | 17 | 7.2 | 1 | 000000000 | 0000 | 000000 | 00 |
M16 | 2 | 18.5 mm | 3 | __ | 22 | 11.6 | 1 | 000000000 | 0000 | 000000 | 00 |
Steel Aligning Press-Fit Nuts for Sheet Metal

Threads float within the body so you can install a bolt at a slight angle to align off-center parts. These nuts have knurls on the bottom of the nut hold them firmly in place. Press them into a drilled or punched hole with an installation tool or an arbor press. Installation requires access to both sides of the panel. A zinc plating provides corrosion resistance in wet environments.
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. | OD | Ht. | PEM® Part No. | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | ||||||||
4-40 | L | 0.054" | 0.36" | 0.13" | AS-440-2 | 5 | 000000000 | 00000 |
6-32 | 21/64" | 0.054" | 0.39" | 0.13" | AS-632-2 | 5 | 000000000 | 0000 |
8-32 | U | 0.054" | 0.44" | 0.13" | AS-832-2 | 5 | 000000000 | 0000 |
10-32 | 13/32" | 0.054" | 0.47" | 0.17" | AS-032-2 | 5 | 000000000 | 0000 |
1/4"-20 | 33/64" | 0.054" | 0.6" | 0.21" | AS-0420-2 | 5 | 000000000 | 00000 |
Nylon-Insert Press-Fit Locknuts for Sheet Metal

These press-fit nuts have a nylon insert that grips threads to resist loosening and knurls on the bottom of the nut that hold them firmly in place. Press them into a drilled or punched hole with an installation tool or an arbor press. Installation requires access to both sides of the panel.
Steel locknuts without a finish are ready to be painted or finished.
Zinc-plated steel locknuts are a good option in dry environments. The zinc plating prevents the steel from corroding until the plating wears away.
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. | Flange Dia. | Head Ht. | Insert Max. Temp., °F | Pkg. Qty. | Pkg. | |
Steel | ||||||||
---|---|---|---|---|---|---|---|---|
4-40 | 5/32" | 0.06" | 0.2" | 0.09" | 250° | 10 | 000000000 | 00000 |
6-32 | 3/16" | 0.06" | 0.28" | 0.13" | 250° | 10 | 000000000 | 0000 |
8-32 | 7/32" | 0.06" | 0.31" | 0.16" | 250° | 10 | 000000000 | 0000 |
Cadmium Yellow-Chromate Plated Steel | ||||||||
6-32 | 3/16" | 0.06" | 0.28" | 0.13" | 250° | 10 | 000000000 | 00000 |
10-32 | 1/4" | 0.06" | 0.34" | 0.18" | 250° | 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.
Steel Press-Fit Nuts for Soft Metal and Plastic

Also known as broach style captive nuts, press these nuts into a drilled or punched hole in plastic and soft metal with an arbor press or similar pressure tool. Installation requires access to both sides of the panel. Knurls on the bottom of the nut hold them firmly in place. A tin plating provides corrosion resistance to chemicals and salt water.
Press-Fit Nuts | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Thread | Head | Installation Tool | |||||||||
Size | Pitch | Drill Bit Size | For Min. Panel Thick. | OD | Ht. | PEM® Part No. | Pkg. Qty. | Pkg. | Each | ||
Tin-Plated Steel | |||||||||||
2-56 | __ | No. 26 | 0.06" | 0.21" | 0.07" | KF2-256 | 50 | 000000000 | 000000 | 000000000 | 0000000 |
4-40 | __ | No. 19 | 0.06" | 0.21" | 0.07" | KF2-440 | 50 | 000000000 | 00000 | 000000000 | 000000 |
6-32 | __ | No. 3 | 0.06" | 0.28" | 0.07" | KF2-632 | 50 | 000000000 | 00000 | 000000000 | 000000 |
8-32 | __ | 1/4" | 0.06" | 0.34" | 0.1" | KF2-832 | 25 | 000000000 | 0000 | 000000000 | 000000 |
10-24 | __ | I | 0.06" | 0.38" | 0.13" | KF2-024 | 25 | 000000000 | 00000 | 000000000 | 000000 |
10-32 | __ | I | 0.06" | 0.38" | 0.13" | KF2-032 | 25 | 000000000 | 00000 | 000000000 | 000000 |
Metric Tin-Plated Steel | |||||||||||
M2 | 0.4 mm | 3.7 mm | 1.53mm | 5.56mm | 1.5mm | KF2-M2-ET | 25 | 000000000 | 0000 | 000000000 | 000000 |
M2.5 | 0.45 mm | 4.2 mm | 1.53mm | 5.56mm | 1.5mm | KF2-M2.5-ET | 25 | 000000000 | 0000 | 000000000 | 000000 |
M3 | 0.5 mm | 4.2 mm | 1.53mm | 5.56mm | 1.5mm | KF2-M3-ET | 25 | 000000000 | 0000 | 000000000 | 000000 |
M4 | 0.7 mm | 6.4 mm | 1.53mm | 8.74mm | 2mm | KF2-M4-ET | 25 | 000000000 | 00000 | 000000000 | 000000 |
M5 | 0.8 mm | 6.9 mm | 1.53mm | 9.53mm | 3mm | KF2-M5-ET | 25 | 000000000 | 00000 | 000000000 | 000000 |