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Hex Head Flange Bolts DIN6921

Hex Flange Bolt

Hex Head Flange Bolts DIN6921

We have two sales market for hex flange bolts, GB5787,GB5789 is for domestic market, DIN6921 is for export market.
Our factory has several four station cold heading machines specializing in the production of flange screws.

    Flange Bolts Details

    ● Material:Middle carbon Steel 35k,45k, Alloy Steel 40Cr
    ● Size: M10-M36
    ● Grade: 8.8, 10.9, 12.9
    ● Surface treatment: Plain, Black, Zp Hot dip galvanizing, Dacromet, Teflon.
    ● Package: Small box, or 25kgs/carton, 36cartons/pallet
    ● Delivery: 30-60 days
    Advantages: when raw materials come to the factory, we will test the composition of raw materials. During the production process, we will constantly spot check the external dimensions of screws. After heat treatment, we will check the mechanical properties. Before packaging, we will check the surface dimensions.

    Flange Bolts Standard and Dimensions

    Bolt
    Bolt

    Factory Display

    Ningbo Zhongli Bolts Manufacturing Co., Ltd.

    Ningbo Zhongli Bolts Manufacturing Co., Ltd.

    Workshop

    Workshop

    Workshop for High Strength Bolts

    Workshop for High Strength Bolts

    Tension Inspection Equipment

    Tension Inspection Equipment

    Product Packaging

    Product Packaging

    Shipment

    Shipment

    Loading Container

    Loading Container

    What Are Hex Head Flange Bolt?

    Hex head flange bolt is a kind of fastener composed of hexagonal head, flange (the gasket under the hexagon is fixed with the hexagon together) and screw (the cylinder with external thread).

    What Are Hex Head Flange Bolt Made Of?

    Carbon Steel, most common seen carbon steel 10B21.

    Where Is the Hex Head Flange Bolt Used?

    Hex head flange bolts are widely used in highway and railway bridges, including industrial and civil buildings, cranes, excavators and other heavy machinery.

    What Are the Grade Properties of Hex Head Flange Bolt?

    There are 8.8, 10.9, 12.9 and other performance grades of hex head flange bolts.  

    How Do You Use a Hex Head Flange Bolt?

    Turn the screw head with a wrench to tighten it.

    What Are Bolts Coated With?

    Zinc Plated, Plain, Black, Hot Dip Galvanizing

    Location on Google Map

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