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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.
18-8 stainless steel locknuts are chemical resistant and may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.
Inch
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" | 0.05" | 0.2" | 0.09" | 250° | 10 | 000000000 | 00000 |
| 6-32 | 3/16" | 0.05" | 0.28" | 0.13" | 250° | 10 | 000000000 | 0000 |
| 8-32 | 7/32" | 0.05" | 0.31" | 0.16" | 250° | 10 | 000000000 | 00000 |
Cadmium Yellow-Chromate Plated Steel | ||||||||
| 6-32 | 3/16" | 0.05" | 0.28" | 0.13" | 250° | 10 | 000000000 | 00000 |
| 10-32 | 1/4" | 0.05" | 0.34" | 0.18" | 250° | 10 | 000000000 | 0000 |
18-8 Stainless Steel | ||||||||
| 2-56 | 1/8" | 0.05" | 0.17" | 0.08" | 250° | 10 | 000000000 | 00000 |
| 4-40 | 5/32" | 0.05" | 0.2" | 0.09" | 250° | 10 | 000000000 | 00000 |
| 6-32 | 3/16" | 0.05" | 0.28" | 0.13" | 250° | 10 | 000000000 | 00000 |
| 8-32 | 7/32" | 0.05" | 0.31" | 0.16" | 250° | 10 | 000000000 | 00000 |
| 10-32 | 1/4" | 0.05" | 0.34" | 0.18" | 250° | 10 | 000000000 | 00000 |
Metric
Thread | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | Drill Bit Size | For Min. Panel Thick., mm | Flange Dia., mm | Head Ht., mm | Insert Max. Temp., °F | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | |||||||||
| M3 | 0.5 | 6 mm | 1.5 | 7 | 3 | 250° | 10 | 000000000 | 00000 |
| M4 | 0.7 | 7.5 mm | 1.5 | 8.5 | 4 | 250° | 10 | 000000000 | 0000 |
| M5 | 0.8 | 8 mm | 1.5 | 9 | 4 | 250° | 10 | 000000000 | 0000 |
18-8 Stainless Steel | |||||||||
| M4 | 0.7 | 7.5 mm | 1.5 | 8.5 | 4 | 250° | 5 | 000000000 | 0000 |
| M5 | 0.8 | 8 mm | 1.5 | 9 | 4 | 250° | 5 | 000000000 | 0000 |