System of Measurement System of Measurement |
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Thread Type Thread Type |
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Fastener Strength Grade/Class Fastener StrengthGrade/Class  |
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Width Width |
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Height Height |
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Hex Nut Profile Hex Nut Profile |
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 | Extra Wide |
Material Material |
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Thread Fit Thread Fit |
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Drive Style Drive Style |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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About Nuts, Materials, and Finishes
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Metric Extreme-Strength Steel Extra-Wide Hex Nuts—Grade 2H
About 10% wider and taller than standard hex nuts, these nuts distribute the load over a large area. They're also known as heavy hex nuts. Grade 2H nuts are comparable in strength to Class 12.9 bolts. They're about 20% stronger than high-strength steel nuts and are used in heavy machinery, such as earth-moving equipment.
Fine threads are closely spaced to prevent loosening from vibration.
For technical drawings and 3-D models, click on a part number.
Thread | ||||||||
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| Size | Pitch, mm | Spacing | Wd., mm | Ht., mm | Specifications Met | Pkg. Qty. | Pkg. | |
Steel—ASTM Grade 2H | ||||||||
| M10 | 1.5 | Coarse | 19 | 12 | ASTM A194 | 5 | 000000000 | 00000 |
| M12 | 1.75 | Coarse | 21 | 12 | ASTM A194, DIN 6915 | 5 | 000000000 | 0000 |
| M14 | 2 | Coarse | 24 | 14 | ASTM A194, DIN 6915 | 5 | 000000000 | 0000 |
| M16 | 2 | Coarse | 27 | 17 | ASTM A194, DIN 6915 | 5 | 000000000 | 0000 |
| M18 | 2.5 | Coarse | 30 | 19 | ASTM A194, DIN 6915 | 5 | 000000000 | 00000 |
| M20 | 2.5 | Coarse | 33 | 20 | ASTM A194, DIN 6915 | 5 | 000000000 | 00000 |
| M22 | 2.5 | Coarse | 36 | 23 | ASTM A194, DIN 6915 | 1 | 000000000 | 0000 |
| M24 | 3 | Coarse | 41 | 24 | ASTM A194, DIN 6915 | 1 | 000000000 | 0000 |
| M27 | 3 | Coarse | 46 | 27 | ASTM A194, DIN 6915 | 1 | 000000000 | 0000 |
| M30 | 3.5 | Coarse | 50 | 30 | ASTM A194, DIN 6915 | 1 | 000000000 | 00000 |
| M33 | 3.5 | Coarse | 55 | 33 | ASTM A194, DIN 6915 | 1 | 000000000 | 00000 |
| M36 | 3 | Fine | 60 | 36 | ASTM A194, DIN 6915 | 1 | 000000000 | 00000 |
| M36 | 4 | Coarse | 60 | 36 | ASTM A194, DIN 6915 | 1 | 000000000 | 00000 |
| M39 | 4 | Coarse | 65 | 39 | ASTM A194 | 1 | 000000000 | 00000 |
| M42 | 3 | Fine | 70 | 39 | ASTM A194 | 1 | 000000000 | 00000 |
| M42 | 4.5 | Coarse | 70 | 42 | ASTM A194 | 1 | 000000000 | 00000 |
| M45 | 4.5 | Coarse | 75 | 45 | ASTM A194 | 1 | 000000000 | 00000 |
| M48 | 3 | Fine | 80 | 48 | ASTM A194 | 1 | 000000000 | 00000 |
| M48 | 5 | Coarse | 80 | 48 | ASTM A194 | 1 | 000000000 | 00000 |
| M52 | 5 | Coarse | 85 | 52 | ASTM A194 | 1 | 000000000 | 00000 |
| M56 | 5.5 | Coarse | 90 | 56 | ASTM A194 | 1 | 000000000 | 00000 |
| M64 | 6 | Coarse | 100 | 64 | ASTM A194 | 1 | 000000000 | 00000 |