The flange locking bolt is an integral bolt composed of a hexagon head, a flange, and a screw.
According to the different positions of the china flange bolt , the size requirements of the flange are different, and there are flat bottom and toothed ones, and the toothed ones play an anti-skid role. High-strength flange bolts have the advantages of being able to withstand higher preload, good anti-loosening performance, precise decoration, and strong durability.
Flange bolts are widely used in engines, heavy machinery, roads, railways, bridges, and other fields.
Specification of Flange Bolts
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Thread specification range (mm)
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M16-M90
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Maximum processing length (mm)
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≤1500mm
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Strength Range
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≤1450MPa
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Geometric Tolerance
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The verticality of the supporting surface relative to the thread is ≤0.02mm
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Friction Coefficient
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μtot, μb, μth
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Surface Treatment
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Black oxide, Phosphating, Flake zinc-aluminum coating (Dacromet, Geomet), HDG (Hot dip galvanizing), Electro galvanizing, Mechanical galvanizing, Copper plating, Teflon, Special coating for marine engine parts, etc.
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Standard Specifications
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All items are produced in strict accordance with industry standards or client-specific requirements.
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