Locking Type Locking Type |
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 | Nylon Insert |
Thread Size Thread Size |
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Cap Nut Profile Cap Nut Profile |
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 | Standard |
Width Width |
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Thread Depth Thread Depth |
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Height Height |
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Finish Finish |
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Drive Style Drive Style |
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Thread Spacing Thread Spacing |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Specifications Met Specifications Met |
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About Nuts, Materials, and Finishes
More
Plastic Cap Nuts
These nylon 6/6 cap nuts are chemical resistant, nonconductive, and lightweight. Also known as acorn nuts, they have a smooth rounded head that covers and protects threads while providing a finished appearance.
For technical drawings and 3-D models, click on a part number.
Thread | ||||||||
|---|---|---|---|---|---|---|---|---|
| Size | Dp. | Wd. | Ht. | Temp. Range, °F | Choose a Color | Pkg. Qty. | Pkg. | |
Nylon 6/6 Plastic | ||||||||
| 4-40 | 13/64" | 1/4" | 9/32" | -40° to 185° | 100 | 000000000 | 000000 | |
| 6-32 | 17/64" | 19/64" | 11/32" | -40° to 185° | 100 | 000000000 | 00000 | |
| 8-32 | 17/64" | 21/64" | 3/8" | -40° to 185° | 100 | 000000000 | 00000 | |
| 10-24 | 1/4" | 23/64" | 13/32" | -40° to 185° | 100 | 000000000 | 00000 | |
| 10-32 | 5/16" | 23/64" | 13/32" | -40° to 185° | 100 | 000000000 | 00000 | |
| 1/4"-18 | 21/64" | 3/4" | 13/16" | -40° to 185° | 25 | 000000000 | 0000 | |
| 1/4"-20 | 5/16" | 27/64" | 15/32" | -40° to 185° | 100 | 000000000 | 00000 | |
| 1/4"-28 | 19/64" | 27/64" | 15/32" | -40° to 185° | 100 | 000000000 | 00000 | |
| 5/16"-18 | 23/64" | 1/2" | 17/32" | -40° to 185° | 50 | 000000000 | 00000 | |
| 5/16"-24 | 3/8" | 1/2" | 17/32" | -40° to 185° | 50 | 000000000 | 00000 | |
| 3/8"-16 | 3/8" | 9/16" | 5/8" | -40° to 185° | 25 | 000000000 | 00000 | |
| 3/8"-24 | 21/64" | 9/16" | 5/8" | -40° to 185° | 25 | 000000000 | 00000 | |
| 3/8"-32 | 13/32" | 9/16" | 5/8" | -40° to 185° | 25 | 000000000 | 00000 | |
| 7/16"-14 | 39/64" | 3/4" | 13/16" | -40° to 185° | 10 | 000000000 | 0000 | |
| 1/2"-13 | 31/64" | 3/4" | 13/16" | -40° to 185° | 25 | 000000000 | 00000 | |
| 1/2"-20 | 21/32" | 3/4" | 13/16" | -40° to 185° | 10 | 000000000 | 0000 | |
| 5/8"-11 | 17/32" | 15/16" | 31/32" | -40° to 185° | 20 | 000000000 | 00000 | |
Metric Plastic Cap Nuts
Made from nylon 6/6, these cap nuts are chemical resistant, nonconductive, and lightweight. Also known as acorn nuts, they have a smooth rounded head that covers and protects threads while providing a finished appearance.
For technical drawings and 3-D models, click on a part number.
Thread | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | Dp., mm | Wd., mm | Ht., mm | Temp. Range, °F | Choose a Color | Pkg. Qty. | Pkg. | |
Nylon 6/6 Plastic | |||||||||
| M4 | 0.7 | 5.9 | 7 | 8 | -40° to 185° | 100 | 000000000 | 000000 | |
| M5 | 0.8 | 6.8 | 8 | 10 | -40° to 185° | 100 | 000000000 | 00000 | |
| M6 | 1 | 8 | 10 | 12 | -40° to 185° | 100 | 000000000 | 00000 | |
| M8 | 1.25 | 8.6 | 13 | 15 | -40° to 185° | 50 | 000000000 | 00000 | |
| M10 | 1.5 | 11 | 17 | 18 | -40° to 185° | 25 | 000000000 | 00000 | |
| M12 | 1.75 | 13.9 | 19 | 20.5 | -40° to 185° | 25 | 000000000 | 00000 | |
Metric Nylon-Insert Cap Locknuts
A nylon insert on these metric nuts prevents vibration from loosening them, and a domed head protects the threads at the end of the bolt from damage and debris. These nuts are reusable, but the nylon insert’s holding power decreases with each use. Also known as acorn nuts, they create a finished appearance and can reduce snagging on wires and insulation. Nuts meet DIN 986, an international standard for domed cap nut dimensions.
These nuts are made of strong and wear-resistant Class 6 steel. A zinc plating extends the life of the nut by protecting the inner steel from rust.
For technical drawings and 3-D models, click on a part number.
Thread | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | Dp., mm | Wd., mm | Ht., mm | Insert Max. Temp., °F | Specifications Met | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel—Class 6 | |||||||||
| M4 | 0.7 | 2.3 | 7 | 9.6 | 245° | DIN 986 | 50 | 000000000 | 000000 |
| M5 | 0.8 | 3.5 | 8 | 10.5 | 245° | DIN 986 | 25 | 000000000 | 0000 |
| M6 | 1 | 3.9 | 10 | 12 | 245° | DIN 986 | 25 | 000000000 | 0000 |
| M8 | 1.25 | 5.2 | 13 | 14 | 245° | DIN 986 | 25 | 000000000 | 00000 |
| M10 | 1.5 | 6.4 | 16 | 18 | 245° | DIN 986 | 10 | 000000000 | 0000 |
| M12 | 1.75 | 8.3 | 18 | 23 | 245° | DIN 986 | 5 | 000000000 | 0000 |
| M16 | 2 | 11.3 | 24 | 28 | 245° | DIN 986 | 1 | 000000000 | 0000 |
| M20 | 2.5 | 13.5 | 30 | 35 | 245° | DIN 986 | 1 | 000000000 | 0000 |
Nylon-Insert Cap Locknuts
The nylon cap covers and grips the threads to resist loosening. They’re reusable, but their holding power lessens with each use. Nuts are steel with a nylon 6/6 cap and insert.
Zinc-plated nuts have a layer of zinc that protects the steel from rust in wet environments.
For technical drawings and 3-D models, click on a part number.
Thread | |||||||
|---|---|---|---|---|---|---|---|
| Size | Dp. | Wd. | Ht. | Insert Max. Temp., °F | Pkg. Qty. | Pkg. | |
Steel—Grade 2 | |||||||
| 8-32 | 9/64" | 11/32" | 23/64" | 250° | 25 | 000000000 | 00000 |
| 10-32 | 9/64" | 3/8" | 23/64" | 250° | 25 | 000000000 | 0000 |
| 1/4"-20 | 7/32" | 7/16" | 31/64" | 250° | 25 | 000000000 | 0000 |
| 1/4"-28 | 7/32" | 7/16" | 31/64" | 250° | 25 | 000000000 | 0000 |
| 5/16"-24 | 1/4" | 1/2" | 1/2" | 250° | 25 | 000000000 | 0000 |
| 3/8"-24 | 21/64" | 9/16" | 5/8" | 250° | 25 | 000000000 | 00000 |
Zinc-Plated Steel—Grade 2 | |||||||
| 8-32 | 9/64" | 11/32" | 23/64" | 250° | 25 | 000000000 | 0000 |
| 10-24 | 9/64" | 3/8" | 23/64" | 250° | 25 | 000000000 | 0000 |
| 10-32 | 9/64" | 3/8" | 23/64" | 250° | 25 | 000000000 | 0000 |
| 1/4"-20 | 7/32" | 7/16" | 31/64" | 250° | 25 | 000000000 | 0000 |
| 5/16"-18 | 1/4" | 1/2" | 1/2" | 250° | 10 | 000000000 | 0000 |
| 3/8"-16 | 21/64" | 9/16" | 5/8" | 250° | 25 | 000000000 | 00000 |
Zinc-Plated Steel—Grade 5 | |||||||
| 3/8"-24 | 21/64" | 9/16" | 5/8" | 250° | 10 | 000000000 | 00000 |