Cold Forged Flange Nuts

Cold Forged Flange Nuts are high-strength lock nuts with an integrated flange surface. Relying on the flange surface to increase the contact area and disperse the pressing force, they have both anti-loosening and load-bearing functions, and are especially suitable for industrial connection scenarios with strong vibration and large load. Our Cold Forged Flange Nuts are made of high-quality medium carbon steel as raw material and processed by cold forging integral forming process. The metal fibers are continuous and complete, and the internal structure is dense. Compared with traditional turned nuts, the tensile strength is increased by more than 30%, and they can withstand higher pre-tightening force without slipping or breaking. The flange end face is flat and fits tightly with the connected parts, which can effectively prevent the nut from loosening and improve the connection reliability. As a source factory with 18 years of experience in cold forged fastener production, our products have been supplied in bulk to overseas customers in construction machinery, automotive and other industries, and have been widely recognized for their high strength and high stability.

We can provide Cold Forged Flange Nuts with various thread standards such as metric, inch and US standard, covering the full series of common specifications from M4 to M20, and support customization of flange nuts with special structures such as toothed anti-slip flanges, enlarged flanges and thickened flanges, adapting to different load-bearing and anti-loosening requirements. The product surface can be subjected to various anti-corrosion treatments such as electro-galvanizing, hot-dip galvanizing, blackening and phosphating to adapt to different use environments. Each flange nut undergoes strict thread go-no-go inspection, hardness test and appearance full inspection before leaving the factory to ensure qualified thread accuracy, uniform hardness, no cracks and no burrs. For overseas heavy equipment customers, we can also provide flange nut products with high strength grades to meet the connection needs of heavy load working conditions.

• High-strength bolted connections for construction machinery and mining equipment
• Connection of vibration parts of automobile chassis and engines
• Matching of high-strength bolt pairs for steel structures and bridge engineering
• Flange connection for wind power equipment and heavy machinery
• Structural component fastening for agricultural machinery and construction machinery

We implement strict quality control standards for all cold forged flange nuts, from material and hardness inspection when raw materials enter the factory, to forming parameter control during cold forging, and then to plating inspection after surface treatment, and finally to 100% full inspection of finished products, checking layer by layer. The core inspection items include thread go-no-go accuracy, hardness, tensile strength, plating thickness and appearance quality, ensuring that each product meets the requirements of the corresponding strength grade. We accept material testing and performance testing from the world's mainstream third-party institutions. All products come with a 1-3 year warranty period. If there are quality problems such as unqualified threads and breakage, we will provide reissue and replacement services for customers at the first time.

We support full-process OEM/ODM customization services, and can customize flange nut products with different materials, strength, sizes and structures according to customers' load grades, installation working conditions and standard requirements. The minimum order quantity for custom orders is 100 pieces, the sample development cycle is 30-45 days, samples are provided free of charge, and customers only need to bear the international express freight. Our technical team can provide material selection and surface treatment optimization suggestions for special working conditions such as high vibration and strong corrosion, helping customers improve the long-term reliability of connections.

We support flexible payment terms. For standard specification flange nut orders, 30% prepayment is adopted, and the balance is settled against the copy of the bill of lading; for custom high-strength orders, 40% prepayment is adopted, and 60% balance is settled against the copy of the bill of lading. We accept telegraphic transfer payment in US dollars and euros. For large-volume long-term procurement, corresponding tiered price discounts can be provided according to the total order volume. All payment details are clear and transparent without any additional hidden fees, making customers more assured in procurement.

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