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Premium Industrial Fasteners for Global Industries

Trusted supplier of high-strength Hex Bolts, Nuts, Washers, Studs, and Thread Rods since 2004. Engineered for performance, durability, and precision.

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G&T Factory

About G&T Industry

Established in 2004, G&T specializes in the manufacturing and export of industrial fasteners including bolts, screws, nuts, washers, and thread bars. With two professional factories and a dedicated foreign trade department based in Shanghai, we deliver high-quality steel fastening solutions to clients worldwide.

Our commitment to efficiency, performance, and customer satisfaction has positioned us as a reliable partner across diverse sectors such as Oil & Gas, Automotive, Structural Steel, and Renewable Energy.

  • ISO-Certified Manufacturing
  • Global Logistics & Warehouse Support
  • Custom Fastener Solutions
  • 20+ Years of Industry Experience
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Our Product Range

G&T offers a comprehensive portfolio of industrial fasteners designed for strength, reliability, and precision engineering across critical applications.

Hex Bolt

Hex Bolt

High-strength hexagonal head bolts available in various grades (Grade 4.8, 8.8, 10.9, 12.9) and finishes. Ideal for structural and mechanical applications.

  • Material: Carbon Steel, Alloy Steel
  • Standards: DIN, ISO, ANSI, JIS
  • Diameter: M6–M100
Hex Nut

Hex Nut

Precision-engineered hex nuts compatible with standard bolts. Available in heavy hex and regular variants with multiple plating options.

  • Material: Carbon Steel, Stainless Steel
  • Finish: Zinc Plated, Hot-Dip Galvanized
  • Standards: DIN 934, ISO 4032
Thread Rod

Thread Rod & Stud

Fully threaded rods and double-end studs for anchoring, suspension, and structural connections. Supplied in cut lengths or coils.

  • Diameter: M8–M36
  • Length: Customizable up to 6 meters
  • Grades: 4.8, 8.8, A193 B7
Washer

Washers

Flat, spring, and locking washers to distribute load and prevent loosening. Made from high-quality steel with corrosion-resistant coatings.

  • Type: Flat, Spring, Lock, Fender
  • Material: Carbon Steel, Stainless Steel
  • Standards: DIN 125, ISO 7089
Heavy Hex Bolt

Heavy Hex Bolt

Extra-strong bolts with larger heads for high-tensile applications in structural steel, bridges, and heavy machinery.

  • Standard: ASTM A325, A490
  • Grade: 8.8, 10.9
  • Finish: Black, Galvanized
Stud Bolt

Stud Bolt

Double-end studs with threaded ends for flange connections in pipelines, pressure vessels, and oil & gas equipment.

  • Material: Carbon Steel, Alloy Steel, Stainless
  • Standard: ASME B16.5, MSS SP-96
  • Length: Custom fabrication available
Screw

Machine Screws

Precision screws with various head types (pan, flat, round) for machinery, electronics, and assembly applications.

  • Drive Type: Slotted, Phillips, Hex
  • Material: Steel, Stainless Steel
  • Diameter: #2–#14, M2–M12
Oil & Gas Fastener

Oil & Gas Fasteners

Specialized high-pressure, corrosion-resistant fasteners for upstream, midstream, and downstream oil & gas operations.

  • Certifications: NACE MR0175, API 20E
  • Materials: B7, L7, 316 Stainless
  • Applications: Flanges, Valves, Piping

Industries We Serve

Our fasteners are engineered to meet the rigorous demands of critical industrial applications across multiple sectors.

Automotive & Heavy Industry

High-torque fasteners for engines, chassis, and heavy machinery requiring durability under dynamic loads.

Water Treatment

Corrosion-resistant stainless and galvanized fasteners for pumps, valves, and filtration systems.

Mechanical Machines

Precision fasteners for assembly, automation, and industrial equipment with tight tolerance requirements.

Structural Steel

High-strength bolts and nuts for building frames, bridges, and metal structures meeting ASTM standards.

Oil & Gas

API-certified, high-pressure fasteners for pipelines, refineries, and offshore platforms.

Solar Energy

UV-resistant and corrosion-proof fasteners for solar panel mounting systems and racking structures.

Tower & Pole

Heavy-duty fasteners for communication towers, power transmission poles, and lighting structures.

General Industry

Versatile fastening solutions for manufacturing, construction, and maintenance operations worldwide.

20+
Years Experience
50+
Countries Served
10M+
Units Shipped Annually
100%
Quality Inspection

Frequently Asked Questions

Get in Touch

Contact our team for product inquiries, quotations, or technical support. We're ready to assist with your fastening needs.

Contact Information

0086-21-63595065
0086-21-63592960
marketing@gntcn.com
0086-21-53087269
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