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When it comes to large-scale engineering and industrial applications, selecting the right GB stud bolt manufacturer is critical for ensuring durability, precision, and safety.
Hardhawk Fastener specializes in producing GB-standard double-end threaded bolts that comply with GB/T specifications, serving global distributors, EPC contractors, and OEM partners.

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What Are GB Stud Bolts?

GB stud bolts are manufactured to Chinese National Standards (GB/T), offering precise dimensions and reliable mechanical strength. They are widely used in:

  • Pipeline flange connections
  • Pressure vessel installation
  • Steel structure assembly
  • Heavy machinery fastening

Key Specifications:

  • Standards: GB/T 901, GB/T 5783, GB/T 897
  • Sizes: M6โ€“M100
  • Grades: 8.8, 10.9, 12.9
  • Materials: Carbon steel, alloy steel, stainless steel (SS304, SS316)
  • Surface Treatments: Hot-dip galvanizing, zinc plating, PTFE coating, black oxide

Why Choose Hardhawk as Your GB Stud Bolt Manufacturer?

Strict GB/T Standard Compliance

We ensure every stud bolt meets GB national standards, guaranteeing interchangeability and strength.

Factory-Direct Supply

Bulk production capacity ensures competitive pricing and stable supply for wholesale customers.

Custom Manufacturing

We offer OEM/ODM services, including non-standard dimensions, special coatings, and private labeling.

Comprehensive Quality Control

From raw material inspection to final torque testing, our QC process ensures zero defects.

Industries That Rely on GB Stud Bolts

IndustryApplication
Oil & GasFlange joint fastening
Power GenerationTurbine and boiler assembly
Marine EngineeringHull and deck structures
PetrochemicalPressure vessel joints
ConstructionSteel structure connections

Explore Our Stud Bolt Range

We supply both GB and ASTM/ISO standard stud bolts, making us a one-stop solution for international projects.
View our stud bolt products here

Conclusion

As a trusted GB stud bolt manufacturer in China, Hardhawk Fastener combines quality assurance, competitive pricing, and global delivery to meet the needs of B2B wholesale buyers.

Contact us today to discuss your order requirements and request a free technical datasheet.