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Automotive, solar, structural steel, railway and oil and gas fastening applications with central connection closeups

Industrial Fastener Manufacturer in China

China-based manufacturer and export supplier of standard and custom bolts, nuts, studs and washers manufactured to ASTM, DIN and ISO specifications. Available in stainless steel, duplex stainless steel, high-strength alloy steel, titanium and nickel alloys for energy, oil & gas, infrastructure, machinery, transportation and process equipment.

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Application MatchingFasteners Selected for Corrosion, Strength and Temperature
Drawing-Based CustomizationSupport for Non-standard Sizes, Materials and Finishes
Project FulfillmentCoordinated Sampling, Production and Shipment
Stainless and duplex stainless fasteners for marine, chemical and hygienic equipment

Engineering Assurance

Stainless & Duplex Stainless Steel

304 / A2-70 · 316 / 316L / A4-70 / A4-80 · Duplex 2205 · Super Duplex 2507

Corrosion-resistant fastening for marine, chemical and hygienic equipment

Austenitic, duplex and super duplex stainless fasteners selected for chloride exposure, washdown, chemical service and long-life outdoor connections.

  • ISO 3506 A2/A4 · Duplex 2205/2507
  • Manufactured to DIN / ASTM / ISO standards
  • Passivation, anti-galling and project coating options
Explore Series
High-strength engineering steel fasteners for structures, machinery and pressure equipment

Engineering Assurance

High-Strength Engineering Steel

Metric property classes 8.8 / 10.9 / 12.9 · ASTM A193 B7 / B16

Heat-treated medium-carbon and alloy steel for highly loaded joints

Quenched-and-tempered engineering steel fasteners for structural, automotive, machinery, pressure and energy applications, with coatings selected separately for corrosion and friction control.

  • Property Classes 8.8 / 10.9 / 12.9
  • ASTM A193 B7 / B16 high-pressure bolting
  • HDG · Zinc Flake · PTFE · Zinc-Nickel options
Explore Series
Titanium and nickel alloy fasteners for lightweight, corrosive and high-temperature service

Engineering Assurance

Titanium & Nickel Alloys

Ti-6Al-4V Grade 5 · Inconel 625 / 718 · Hastelloy C276 · Monel 400

Lightweight, corrosion-resistant and high-temperature critical service

Titanium fasteners provide high specific strength and corrosion resistance; selected nickel alloys provide elevated-temperature, creep or chemical-corrosion performance according to grade.

  • Titanium Grade 5 · Inconel 625/718
  • Hastelloy C276 · Monel 400
  • Grade-specific temperature and corrosion qualification
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Aluminum and engineered polymer fasteners for lightweight, insulating and specialist applications

Engineering Assurance

Special Materials & Engineered Polymers

Aluminum 7075-T6 · PEEK · PA66 (Nylon 66)

Lightweight, insulating, non-magnetic and application-specific properties

Specialized fastening solutions where electrical insulation, low mass, chemical resistance or non-magnetic behavior matters, including aluminum and engineering polymers.

  • Aluminum 7075-T6 · PEEK · PA66
  • Insulating, lightweight and non-magnetic options
  • Semiconductor and custom engineering applications
Explore Series

Application Scenarios

Precision-matched fastener solutions for every industrial environment

High-strength bolts, self-clinching fasteners and rivets positioned around automotive powertrain, chassis and EV battery assemblies
Automotive & New Energy Vehicles
Grade 10.9 tower bolts, stainless mounting hardware and locking fasteners used in wind turbines and solar PV systems
Solar & Wind Renewable Energy
High-strength structural bolts, anchor rods and washers used in steel buildings, bridges and heavy machinery
Construction, Bridges & Heavy Machinery
Grade 10.9 and 12.9 bolts, rail joint fasteners and locking hardware used on railway track and rolling stock
Railway & Rolling Stock
ASTM A193 stud bolts and heavy hex nuts used in high-pressure oil and gas flange and valve connections
Petrochemical, Oil & Gas & Pressure Vessels
High-temperature stud bolts, heavy hex nuts and structural fasteners used on turbines, boilers and power plant equipment
Power Generation & Energy

Factory Strength

Source factory in Wuxi fastener industry cluster · Stable capacity · Strict quality control · Rich export experience

Cold Forging & Nut Production
Factory videoTour Eternal Fastener's production and quality facilitiesWatch factory introduction →Manufacturing processHot forging process for high-strength boltsWatch video and read guide →

Certifications & Quality

IATF16949

CE Certification

SGS Testing

Material Test Report

World map showing Eternal Fastener export markets from Wuxi, China

Global Market Coverage

Serving premium industrial clients across five continents

Global HQ Wuxi, China

We supply industrial bolts, nuts, screws, studs, washers and custom fasteners to equipment manufacturers, EPC contractors and industrial distributors worldwide.

  • 50+ countries served
  • DIN / ASTM / ISO / GB standards
  • Material certificates and inspection records
  • FOB / CIF / DDP shipping
  • 15–25 day standard lead time
  • Custom drawing production available