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High-Quality DIN 6923 Flange Nuts from China Suppliers | Reliable Factory Manufacturing Grade 4.8 to 12.9
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High-Quality DIN 6923 Flange Nuts from China Suppliers | Reliable Factory Manufacturing Grade 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, etc.

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Flange nuts, also known as washer nuts, serrated nuts, or hexagonal flange nuts, are essential components in various applications, particularly in pipeline connections and workpieces requiring enhanced nut contact surfaces. As reliable China suppliers, we offer a wide range of high-quality flange nuts manufactured in our state-of-the-art factory.

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Commonly referred to as flange nuts, these hexagonal nuts feature a built-in flange that ensures optimal contact with screws and bolts. Their design provides superior fastening performance compared to standard hexagonal nuts, making them an ideal choice for numerous projects. Trust our China factory for dependable flange nuts that meet the demands of your application.

    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 can be manufactured from either iron or stainless steel, although iron is more commonly utilized in standard applications.

    What kinds of surface treatments are available for flange nuts?

    They can be electroplated based on customer color requirements. Options include environmentally friendly treatments (colored zinc, nickel, blue zinc, black zinc) and ordinary electroplating treatments (white zinc, colored zinc, black zinc, white nickel).

    Why do flange nuts offer a better anti-loosening effect?

    Flange nuts feature a toothed round flange face at one end that acts as an integrated washer. This design provides a larger contact area during fastening, which helps prevent the connection point from loosening over time.

    How do you properly install a flange nut?

    First, locate the correct installation hole, insert the nut, and slowly rotate it clockwise until it is fully tightened. You can check the position afterward and adjust it if necessary.

    How are flange nuts used with aluminum profiles?

    They are commonly used alongside aluminum profile connection angles and T-bolts. This combination allows for fast assembly of the frame structure while providing rotation performance that prevents loosening.