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Black Heavy Hexagon Nut: The Ultimate in Strength and Durability
When your project demands maximum load distribution and superior clamping force, the standard hex nut may fall short. This is where the Black Heavy Hexagon Nut excels. Engineered for heavy-duty applications, this nut features a larger wrenching surface and a thicker body compared to its standard counterpart, providing a more secure and reliable fastening solution under high stress and vibration. For applications requiring specialized configurations, we also offer a comprehensive range of precision nuts, including Hexagon Nut for Side for unique access points, Double Chamfered Hex Nuts for easier thread engagement, Hexagon Nuts with Height 1.5d for added thread engagement strength, and Black Hexagonal Thin Nuts for space-constrained assemblies. The robust black oxide finish not only provides a sleek, professional appearance but also offers enhanced corrosion resistance, making the Black Heavy Hexagon Nut suitable for a wide array of industrial and construction environments.
The defining characteristic of the Black Heavy Hexagon Nut is its dimensional profile, which is specifically designed to handle greater preloads and prevent loosening. The nut's geometry ensures a larger bearing surface area, effectively reducing the stress on the fastened material. This design is critical in structural steel connections, heavy machinery, and other high-integrity assemblies where failure is not an option. The black oxide coating is a conversion coating that becomes an integral part of the metal, providing a durable layer that resists chipping and peeling. This makes the Black Heavy Hexagon Nut an excellent choice for both indoor and outdoor applications, offering long-term performance and reliability. Each nut is manufactured to exacting standards, guaranteeing consistent quality and precise threading for a perfect fit every time.
Key Product Parameters:
- Material: Grade C, Grade DH, or other high-strength carbon steel.
- Finish: Black Oxide, a matte black corrosion-resistant coating.
- Standards: Compliant with ASTM A563, ASME B18.2.2, and other relevant international standards.
- Thread Type: UNC (Unified National Coarse) or UNF (Unified National Fine) threads available.
- Temperature Range: Suitable for service temperatures from -50°F to 400°F (-45°C to 204°C).
Detailed Dimensional Specifications (ASTM A563 Grade DH):
| Nominal Size (Diameter) | Width Across Flats (W) | Width Across Corners (C) | Height (H) | Thread Pitch |
|---|---|---|---|---|
| 1/2" | 7/8" | 1.010" | 0.484" | 13 UNC |
| 5/8" | 1-1/16" | 1.227" | 0.603" | 11 UNC |
| 3/4" | 1-1/4" | 1.443" | 0.723" | 10 UNC |
| 7/8" | 1-7/16" | 1.658" | 0.843" | 9 UNC |
| 1" | 1-5/8" | 1.875" | 0.963" | 8 UNC |
Mechanical Properties:
| Grade | Proof Load (psi) | Hardness (Brinell) | Material |
|---|---|---|---|
| Grade C | 105,000 | 228 - 269 | Medium Carbon Steel |
| Grade DH | 150,000 | 302 - 352 | Medium Carbon Steel, Quenched & Tempered |
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