Hex Nut (DIN 6330B)
The U20 Hex Nut is a high-strength clamping nut engineered specifically for industrial workholding. Designed to exceed standard nut heights, this "extra-thick" design increases the engaged thread length, providing significantly better clamping security and durability under the heavy loads found in machine shops.
Hex Nut (DIN 6330B)
This is an "extra-thick" heavy-duty nut. Because it’s thicker than a standard nut, you get more thread contact, which means it holds much stronger and is far less likely to strip or come loose. It's built to last and versatile enough to be used flat or with a leveling spherical washer.
Hex Nut (DIN 6330B)
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Hex Nut (DIN 6330B)
Code No: U20
Key Features
Increased Clamping Security: The additional thickness provides more thread engagement, preventing stripped threads and ensuring the nut remains tight under high vibration.
Versatile End Design:
Flat End: Designed for use with a plain washer for standard flat clamping.
Spherical End: Designed to be paired with a Conical Seat Washer (U26) for self-aligning applications on uneven surfaces.
Industrial Durability: Manufactured from hardened and tempered steel (Class 8.8 / 8G) with a tensile strength of 80/90 kg/mm², capable of withstanding the most rigorous shop-floor conditions.
Professional Finish: Burnished surface finish for enhanced wear resistance and protection against corrosion
Specifications.....
| Code | Thread | S (mm) | E (mm) | H (mm) |
| U20-1 | M8 | 13 | 15.0 | 12 |
| U20-2 | M10 | 17 | 19.6 | 15 |
| U20-3 | M12 | 19 | 20.9 | 18 |
| U20-3A | M14 | 20 | 21.0 | 22 |
| U20-4 | M16 | 24 | 27.7 | 24 |
| U20-5 | M20 | 30 | 34.6 | 30 |
| U20-6 | M24 | 36 | 41.6 | 36 |
| U20-7 | M30 | 46 | 53.1 | 45 |