Stainless Steel Flange Nut

Handan Hengmai Fasteners Manufacturing Co., Ltd. is one of the most reliable manufacturers and suppliers of stainless steel flange nut in China. As we have world-leading production equipment and strong manufacturing capabilities, we warmly welcome you to buy bulk high quality stainless steel flange nut for sale here from our factory. Customized orders are welcome.

Stainless Steel Flange Nuts are integrated anti‑pressure fasteners manufactured in accordance with DIN6923, ISO4161 and GB/T 6187.1 standards. The one‑piece structure combines a hexagonal nut body and an enlarged flange surface. Compared with separate combinations of ordinary nuts and flat washers, it simplifies assembly procedures and avoids washer displacement during tightening. Made of stainless steel raw materials, the product features inherent corrosion resistance, and can be equipped with anti‑slip serrations on the flange surface upon request. Our factory maintains complete metric specifications in stock, supports passivation surface treatment, and provides customized solutions for coastal equipment, marine facilities and outdoor corrosive working environments for Belt‑and‑Road clients.

1. Integrated flange surface evenly disperses clamping pressure, effectively preventing pressure indentation on thin metal plates;

2. Stainless steel material delivers excellent resistance to salt fog, humidity and mild chemical corrosion, suitable for long‑term outdoor service without frequent maintenance;

3. Integrated forming eliminates the risk of missing or shifting flat washers during on‑site installation, improving assembly efficiency;

4. Two structural options (smooth flange / serrated flange) can meet anti‑slip requirements under different vibration intensities.

Extensively used in coastal port machinery, marine equipment, photovoltaic outdoor brackets, food processing machinery, outdoor municipal facilities, new energy equipment and environmental protection equipment assembly. Serrated flange types are preferred for high‑vibration equipment; smooth flange versions are suitable for components requiring protection of finished surfaces.

Each batch undergoes thread go/no‑go gauge inspection, dimensional tolerance testing and hardness sampling. Passivated stainless steel products are subject to neutral salt spray testing. Raw material spectral inspection records are retained; SGS third‑party material and performance test reports can be supplied for bulk orders. The whole production process follows ISO9001 quality control standards.

Standard packing: inner moisture‑proof PE bags + outer woven bags, palletized for sea freight. Small orders can adopt carton packaging with customizable shipping marks. Store in dry and ventilated warehouses, avoid contact with salt and acid substances to prevent surface discoloration. We provide FOB, CIF, DDP multi‑mode logistics schemes with controllable transit cycle.

Pre‑sales technicians assist you to select material grade and flange type according to local climate and equipment vibration conditions. If factory‑defective products appear after arrival, we arrange free replacement and bear corresponding logistics costs. We can provide torque reference suggestions for stainless steel assembly to avoid thread galling.

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