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China Flange Nuts Supplier - High-Quality DIN 6923 Precision Nuts from Factory, Grades 4.8 to 12.9
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China Flange Nuts Supplier - High-Quality DIN 6923 Precision Nuts from Factory, Grades 4.8 to 12.9

Grade: 4.8, 8.8, 10.9, 12.9 | Material: Q235, 35K, 45K, 40Cr, 35Crmo, 42Crmo | Surface Treatment: Blackened, Electrogalvanized, Dacromet, Hot-dip Galvanized, Galvanized, and more!

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Flange nuts, often referred to as washer nuts, serrated nuts, or hexagonal flange nuts, are essential components in pipeline connections and workpieces that require enhanced nut contact surfaces. As a leading supplier and factory in China, we specialize in providing high-quality flange nuts tailored to meet various industrial needs.

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These hexagonal flange nuts are designed for optimal performance, making them a popular choice in applications where screws and bolts are utilized. Their integrated flange surface provides superior fastening capabilities, ensuring better grip and stability compared to standard hexagonal nuts. Trust our China-based factory for reliable and efficient flange nut solutions that enhance the integrity of your projects.

    Product introduction

    introduction
    xqcbd
    The basic knowledge of flange nuts is introduced as follows: flange nuts can be made of iron or stainless steel. But iron is more commonly used. And it can also be electroplated according to the color requirements of the customer. There are generally environmentally friendly and non environmentally friendly electroplating treatments. Electroplating includes environmentally friendly colored zinc, environmentally friendly nickel, environmentally friendly blue zinc, environmentally friendly black zinc, as well as ordinary electroplating such as white zinc, colored zinc, black zinc, white nickel, etc.

    Usage characteristics of flange nuts

    use
    • 1 Tubing
      Use a pipe cutter or grinding wheel cutting machine (the cutting blade should be dedicated) to vertically cut stainless steel pipes according to the required length, clean the burrs at the end, and round them;
    • 2 Welding
      The left and right conical flange plates (with grooves, specifically designed for embedding flange gaskets on both sides) are welded to the two pipe ports that need to be connected using tungsten inert gas arc welding (TIG welding);
    • 3 Gaskets
      Double sided flange sealing gaskets are lined between the left and right flange pieces;
    • 4 Tightening
      Clamp the two flanges with clamps, and then use fastening screws (hexagon socket bolts) to clamp the flange or fastening handle (one end of the external thread is connected to the internal thread of the handle, and the other end is connected to the fixed rivet for flexible connection).
    Flange nuts can be used as an integrated washer because there is a toothed round flange face at one end, so how to use flange nuts? Let's take a look: When using a flange nut, first find the hole where the nut can be installed, then insert it into the hole location, and then slowly rotate clockwise until tightened. Of course, after tightening, you can check if the position is fixed, and if not, you can adjust it again. Flange nuts are usually used in conjunction with aluminum profile connection angles. Combined with T-bolts, the frame structure can be quickly assembled, and the flange nut has a certain rotation performance, which can effectively avoid the loosening of the connection point in the later use process. The bolt should be used with the flange nut, and the bolt should be used with the flange nut to make the flange nut fasten with a large contact area, which is easier to use than other nuts and has a better anti-loosening effect.
    Thread specification M5 M6 M8 M10 M12 M14 M16 M20
    Pitch Coarse teeth 0.8 1 1.25 1.5 1.75 2 2 2.5
    Fine teeth 1 / / 1 1.25 1.5 1.5 1.5 1.5
    Fine teeth 2 / / / -1 -1.25 / / /
    minimum 1 1.1 1.2 1.5 1.8 2.1 2.4 3
    minimum 5 6 8 10 12 14 16 20
    maximum 5.75 6.75 8.75 10.8 13 15.1 17.3 21.6
    maximum 11.8 14.2 17.9 21.8 26 29.9 34.5 42.8
    minimum 9.8 12.2 15.8 19.6 23.8 27.6 31.9 39.9
    minimum 8.79 11.05 14.38 16.64 20.03 23.36 26.75 32.95
    maximum 5 6 8 10 12 14 16 20
    minimum 4.7 5.7 7.6 9.6 11.6 13.3 15.3 18.9
    minimum 2.2 3.1 4.5 5.5 6.7 7.8 9 11.1
    Maximum = Nominal value 8 10 13 15 18 21 24 30
    minimum 7.78 9.78 12.73 14.73 17.73 20.67 23.67 29.67
    maximum 0.3 0.36 0.48 0.6 0.72 0.88 0.96 1.2
    Frequently Asked Questions (FAQ)

    What materials are flange nuts made of?

    Flange nuts are primarily made of iron or stainless steel, with iron being more commonly used in various industrial applications.

    What electroplating options are available for flange nuts?

    We offer both environmentally friendly electroplating (colored zinc, nickel, blue zinc, black zinc) and ordinary electroplating (white zinc, colored zinc, black zinc, white nickel).

    How do you properly install a flange nut?

    To install, align the nut with the corresponding hole, insert it, and turn it clockwise slowly until it is securely tightened. Check the position afterward to ensure a firm connection.

    What are the advantages of using a flange nut over standard nuts?

    Flange nuts feature an integrated, toothed round flange face that acts as a washer. This provides a larger contact area, easier fastening, and enhanced anti-loosening performance.

    Can flange nuts be used with aluminum profiles?

    Yes, flange nuts are commonly used alongside aluminum profile connection angles and T-bolts to quickly assemble frame structures while preventing the loosening of joint connections.