System of Measurement System of Measurement |
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Thread Type Thread Type |
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Width Width |
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Height Height |
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Material Material |
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Finish Finish |
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Fastener Strength Grade/Class Fastener StrengthGrade/Class  | Show |
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Fastener Strength Grade/Class Fastener StrengthGrade/Class | Hide |
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Thread Direction Thread Direction |
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| Right Hand | Left Hand |
Hex Nut Profile Hex Nut Profile |
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 | Standard |
Wing Nut Profile Wing Nut Profile |
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 | Standard |
Thread Spacing Thread Spacing |
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Base Diameter Base Diameter |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Thumb Nut Head Shape Thumb Nut Head Shape |
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 | Wing |
DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Drive Style Drive Style |
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| External Hex | External Square |
About Nuts, Materials, and Finishes
More
Metric Left-Hand Threaded Medium-Strength Steel Hex Nuts
These metric nuts tighten when turned to the left; once fastened, they resist loosening from counterclockwise motion. They are suitable for fastening most machinery and equipment. A zinc plating provides corrosion resistance in wet environments.
For technical drawings and 3-D models, click on a part number.
Metric Steel and Iron Wing Nuts
These nuts have wings that provide more leverage for greater torque while tightening than knurled-head thumb nuts.
Zinc-plated wing nuts are corrosion resistant in wet environments.
For technical drawings and 3-D models, click on a part number.
Thread | ||||||||
|---|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | Base Dia., mm | Wd., mm | Ht., mm | Specifications Met | Pkg. Qty. | Pkg. | |
Style 1 | ||||||||
Zinc-Plated Steel—Class 5 | ||||||||
| M3 | 0.5 | 10.9 | 23.1 | 11.9 | DIN 315 | 25 | 000000000 | 00000 |
| M4 | 0.7 | 8 | 17.6 | 8.6 | DIN 315 | 50 | 000000000 | 00000 |
| M5 | 0.8 | 10.3 | 22.5 | 11 | DIN 315 | 25 | 000000000 | 0000 |
| M6 | 1 | 12.7 | 27.8 | 13.6 | DIN 315 | 25 | 000000000 | 0000 |
| M8 | 1.25 | 13.8 | 30.3 | 14.8 | DIN 315 | 20 | 000000000 | 0000 |
| M10 | 1.5 | 16.5 | 36.2 | 17.7 | DIN 315 | 10 | 000000000 | 0000 |
| M12 | 1.75 | 22.5 | 49.4 | 24.1 | DIN 315 | 5 | 000000000 | 0000 |
Style 5 | ||||||||
Zinc-Plated Steel—Class 5 | ||||||||
| M4 | 0.7 | 8 | 20 | 10.5 | DIN 315 | 10 | 000000000 | 0000 |
| M5 | 0.8 | 11 | 26 | 13 | DIN 315 | 10 | 000000000 | 0000 |
| M6 | 1 | 13 | 33 | 17 | DIN 315 | 10 | 000000000 | 0000 |
| M8 | 1.25 | 16 | 39 | 20 | DIN 315 | 5 | 000000000 | 0000 |
| M10 | 1.5 | 20 | 51 | 25 | DIN 315 | 5 | 000000000 | 00000 |
| M12 | 1.75 | 23 | 65 | 33.5 | DIN 315 | 1 | 000000000 | 0000 |
| M16 | 2 | 29 | 73 | 37.5 | DIN 315 | 1 | 000000000 | 00000 |
Metric Low-Strength Steel Square Nuts
Large flat sides make these metric nuts easy to grip with a wrench and keep them from rotating in channels and square holes. About half the strength of medium-strength steel square nuts, use them in light duty fastening applications, such as securing access panels.
Steel square nuts are best for dry environments, since moisture will cause them to rust.
Zinc-plated steel square nuts resist corrosion in wet environments.
Black zinc-plated steel square nuts resist corrosion in wet environments and have a black finish that blends in with dark surfaces.
For technical drawings and 3-D models, click on a part number.
Thread | |||||||
|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | Wd., mm | Ht., mm | Specifications Met | Pkg. Qty. | Pkg. | |
Steel—Class 5 | |||||||
| M4 | 0.7 | 7 | 3 | DIN 557 | 50 | 000000000 | 00000 |
| M5 | 0.8 | 8 | 4 | DIN 557 | 50 | 000000000 | 00000 |
| M6 | 1 | 10 | 5 | DIN 557 | 25 | 000000000 | 0000 |
| M8 | 1.25 | 13 | 6.5 | DIN 557 | 25 | 000000000 | 0000 |
| M10 | 1.5 | 17 | 8 | DIN 557 | 10 | 000000000 | 0000 |
| M12 | 1.75 | 19 | 10 | DIN 557 | 5 | 000000000 | 0000 |
| M16 | 2 | 24 | 13 | DIN 557 | 1 | 000000000 | 0000 |
Zinc-Plated Steel—Class 5 | |||||||
| M4 | 0.7 | 7 | 3.2 | DIN 557 | 100 | 000000000 | 00000 |
| M5 | 0.8 | 8 | 4 | DIN 557 | 100 | 000000000 | 00000 |
| M6 | 1 | 10 | 5 | DIN 557 | 100 | 000000000 | 00000 |
| M8 | 1.25 | 13 | 6.5 | DIN 557 | 25 | 000000000 | 0000 |
| M10 | 1.5 | 17 | 8 | DIN 557 | 25 | 000000000 | 00000 |
| M12 | 1.75 | 19 | 10 | DIN 557 | 10 | 000000000 | 0000 |
| M16 | 2 | 24 | 13 | DIN 557 | 5 | 000000000 | 00000 |
| M20 | 2.5 | 30 | 16 | DIN 557 | 5 | 000000000 | 00000 |
Black Zinc-Plated Steel—Class 5 | |||||||
| M4 | 0.7 | 7 | 3 | DIN 557 | 25 | 000000000 | 0000 |
| M5 | 0.8 | 8 | 4 | DIN 557 | 25 | 000000000 | 0000 |
| M6 | 1 | 10 | 5 | DIN 557 | 25 | 000000000 | 0000 |
| M8 | 1.25 | 13 | 6.5 | DIN 557 | 10 | 000000000 | 0000 |
| M10 | 1.5 | 17 | 8 | DIN 557 | 10 | 000000000 | 00000 |
| M12 | 1.75 | 19 | 10 | DIN 557 | 5 | 000000000 | 0000 |
| M16 | 2 | 24 | 13 | DIN 557 | 1 | 000000000 | 0000 |