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    Application
    Oil & Gas

    Oil & Gas

    28th July 2025

    Wellhead Bolting That Seals When Hell Freezes Over

    Challenge: Sulfide stress cracking at 15,000psi

    Solution:

    • NACE MR0175 compliant A286 L9 bolts

    • Cold-forged 718 Inconel nuts
      Proof: Zero H₂S failures in Permian Basin fracking operations

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    • Head type: Flat head machine screws, pan head machine screws

    High Strength Bolts 8.8 Grade

    High Strength Bolts 8.8 Grade
    Hot Dipped Galvanized Bolt As1252 ,Din931, Din933 Grade 8.8

    • Standard: AS1252 ,DIN931, DIN933 ,ISO4014,ISO4017
    • Sizes: M12 to M64
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    Double End Stud Bolts

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    • Standard: DIN975, DIN976, ASME B18.31.2
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    HV Bolts | EN 14399-4 Bolts | DIN 6914 Structural Bolts

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    • Standard: EN 14399-4, EN14399-6
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    High Tensile Bolt and Nut | High Tensile Bolts Manufacturers

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    • Standard: DIN931, DIN933, ISO4014, ISO4017
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    • Grade: 8.8, 10.9, grade 8

    Contact Us

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      Gmetalparts is a premier Chinese manufacturer and supplier specializing in high-strength bolting solutions, including structural bolts…

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