Products Description
The core feature of the Hex Flange Nut is its hexagonal shape and flange design. The flange acts like a gasket, increasing the contact area to improve locking stability, reduce the risk of indentation on installed components, and enhance resistance to loosening.
Key structural features:
Hexagonal shape: Compatible with standard wrenches and automated assembly equipment, maintaining stable assembly efficiency on large production lines.
Increased overall flange area: Effectively distributes preload, reducing stress concentration.
Optional serrated flange texture: Provides higher anti-loosening efficiency in vibration environments.
One-piece molding: Eliminates the need for additional gaskets, reducing procurement costs and inventory complexity.
This structure makes it an ideal fastener for impact, high vibration, and high-frequency assembly conditions.
Technical Specifications and Material Advantages
| Medium Carbon Alloy Steel (ASTM A563 Grade DH) | Utilizing microalloying technology, 0.15%-0.30% of vanadium (V) and niobium (Nb) are precisely added to the carbon steel matrix, forming nanoscale carbonitride precipitates. This microstructure, after quenching and tempering, achieves excellent performance with a tensile strength ≥850MPa and a core hardness of HRC 28-36, while maintaining a Charpy impact toughness of over 25J. After phosphating, the surface withstands a salt spray test (NSS) time of up to 120 hours, suitable for general industrial environments. |
| Stainless Steel Series (SUS 304/316) | The 316 stainless steel version increases the molybdenum (Mo) content to 2.0%-2.5%, significantly enhancing resistance to chloride ion pitting corrosion. In the ASTM B117 salt spray test, the 316 stainless steel passed 1000 hours without red rust. More importantly, we employ electroslag remelting (ESR) purification to control the non-metallic inclusion level to below grade 0.5 according to GB/T 10561 standards, avoiding the risk of delayed fracture due to stress concentration. This makes it particularly suitable for marine engineering and chemical equipment. |
| Brass Alloy (CuZn39Pb3) | Lead-containing brass maintains a tensile strength of 370MPa while achieving a machinability index of 120%, making it suitable for precision preload control in automated assembly. After surface passivation, the contact resistance stabilizes below 0.5mΩ, making it an ideal choice for anti-static connections in explosion-proof electrical systems and communication base stations. |
Design Advantages: The Revolutionary Significance of Integrated Flanges
The Intrinsic Logic of Loosening Prevention and Vibration Resistance
The flange acts as a robust base, and its increased support area greatly enhances the system's vibration resistance. It amplifies the frictional force generated by the tightening force, effectively resisting the self-loosening of the threaded pair caused by dynamic loads. In many medium-to-high vibration scenarios, a high-performance Flange Nut is sufficient to replace complex anti-loosening combinations, simplifying the BOM (Bill of Materials).
Protective and Sealing Functions
The smooth and flat flange bottom surface effectively protects the surfaces of the connected parts, preventing scratches caused by Slotted Nut rotation. Simultaneously, in applications requiring a certain level of sealing (such as fixing oil and gas connection plates), it provides a more reliable sealing effect than ordinary nuts, preventing impurities from entering or media leakage.
Assembly efficiency multiplier
One less part means one less process and one less possibility of error. Using hexagonal flange nuts, operators no longer need to find and place washers; they can simply tighten them, significantly improving assembly line efficiency and reducing labor costs.
Engineering Applications and Value
The value of Round Nuts in industrial applications extends far beyond their simple fastening function. In the automotive manufacturing industry, they are widely used in engine mounts, chassis connections, and transmission systems, effectively reducing loosening problems caused by vibration. In industrial machinery, hexagonal flange nuts have become the preferred connector for high-precision machine tools and automated equipment, ensuring the stability and accuracy of equipment operation.
In the power equipment sector, the application of Jam Nuts is particularly important. High-voltage switchgear, transformers, and substation equipment have extremely high reliability requirements for connectors, and the anti-loosening properties of Keps Nuts make them a standard component in these critical devices. Especially in the installation of wind power and photovoltaic power plants, hexagonal flange nuts can withstand long-term wind vibration, ensuring the stable operation of power transmission systems.
In the shipbuilding and marine engineering sector, the requirements for the corrosion resistance and strength of connectors are extremely stringent. The stainless steel version of Metal Steel Screw Hardware Fasteners performs excellently in seawater environments, effectively resisting chloride ion corrosion and extending equipment lifespan. At the same time, their unique design makes the installation process more convenient, reducing the complexity and risks of offshore operations.
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