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    Application
    Heavy Equipment

    Heavy Equipment

    28th July 2025

    Mining Shovel Joints That Outlast The Machine

    Challenge: 20-ton impact loads shearing pivot bolts

    Solution:

    • 4340 Chromoly bolts with induction-hardened shanks (HRC 55)

    • NASA-developed JPL wedge-lock technology
      Proof: 11,000-hour MTBF vs industry 4,200-hour average

    Recommend products

    HS Bolt,High Strength Bolt Bolt Factory

    High-strength steel fastener factory

    • Metric Sizes: M12 to M64 Imperial size: 1/2″” to 1 1/2″
    • Surface: Hot dipped Galvanized , Electro-Galvanizing ,Dacromet Coating .Black Oxide ,Geomet ,Xylan
    • Grade : 8.8grade ,10.9grade,12.9grade
    • Material type: Medium carbon steel ,Alloy steel
    • Standards: A325,A490 ,EN14399 ,JIS B1186 ,DIN6914,BS4395

    HR Bolt,Preloadbolts,Structural Bolts Bs EN14399

    High-Strength Structural Bolting Assembles For Preloading
    Bs En 14399-3, En 14399-4 Bolt

    • Sizes: M12 to M36 ;1/2″”to 1 1/2″”
    • Surface: Hot dipped Galvanized , Black Oxide ,Dacromet ,Geomet ,Zinc plate
    • Grade : 8.8 grade ,10.9grade
    • Material type:Medium carbon steel ,Alloy steel
    • Standards: EN14399

    Bolt‑Nut‑Washer Assembly / Fastener Assembly

    nut bolt and washer assembly, black or HDG bolt assembly

    • Standard: DIN931, DIN933, DIN, 934, ISO4014, ISO4017, ISO4032,AS1252,AS1111
    • Sizes: M10 – M64
    • Surface: Black, HDG, Zinc, Teflon, Dacromet etc
    • Grade: 4.8, 8.8, 10.9

    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
    • Surface: Hot dipped Galvanized , Zinc plated ,Dacromet ,Geomet,
    • Grade: 8.8 ,AS1252 ,A325,A490

    Heavy Hex Bolts/Structural Bolts A325/Structural Bolts Manufacturer

    HEAVY HEX BOLTS/STRUCTURAL BOLTS A325/STRUCTURAL BOLTS MANUFACTURER
    Heavy Hex Bolts, Hex Bolts a325, Structural Steel Bolts

    • Standard: ASTM A193, A325, A490, A307, ASTM A325M
    • Sizes: M12 to M36, 1/2” to 2 1/2”
    • Surface: Black Hex Bolts, Hot dipped Galvanized Hex Bolts, Plain
    • Grade: A193, A325, A490, A307

    Contact Us

    Contact us or give us a call to discover how we can help.

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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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