Structural Bolts - Offshore Milling & Sourcing Skip to content

Structural Bolts

Structural Bolts Bulk Supply

Bulk & Factory Direct Supply

High-Strength Fastening for Critical Structural Applications

Structural bolts are engineered for high-load, high-stress connections, primarily used in steel-to-steel construction where strength and reliability are critical. Designed to meet strict industry standards, these bolts provide secure, long-lasting performance in demanding environments.

At Offshore Milling & Sourcing, we supply bulk structural bolts sourced directly from global manufacturers, ensuring compliance, consistency, and cost efficiency for large-scale projects.


Types Available

  • Heavy Hex Structural Bolts
  • Tension Control (TC) Bolts
  • Fully Threaded Structural Bolts
  • Partially Threaded Structural Bolts
  • High-Strength Friction Grip Bolts
  • Metric Structural Bolts
  • Custom Per-Print Structural Bolts

Grades Available

  • ASTM A325
  • ASTM A490
  • ASTM F3125
  • Metric Class 8.8 / 10.9 / 12.9
  • Other ASTM & DIN Specifications Available

Materials

  • Medium Carbon Steel
  • Alloy Steel
  • Heat-Treated Alloy Steel
  • Stainless Steel (upon request)
  • Specialty Alloys (upon request)

Finish & Coating Options

  • Plain Finish
  • Hot Dip Galvanized
  • Mechanical Galvanized
  • Zinc Plated
  • Weathering Steel Options
  • Custom Corrosion-Resistant Coatings

Industries Served

  • Construction & Infrastructure
  • Steel Fabrication
  • Bridges & Transportation
  • Oil & Gas
  • Energy & Utilities
  • Industrial Plants
  • Commercial & High-Rise Buildings

Applications

  • Steel beam and column connections
  • Bridge construction
  • Structural frameworks
  • Heavy equipment foundations
  • Infrastructure and utility projects
  • High-load fastening applications

Why Offshore Milling & Sourcing?

  • Direct factory sourcing for competitive pricing
  • High-volume, project-ready supply
  • Compliance with ASTM and international standards
  • Custom manufacturing to exact specs
  • Reliable logistics for large-scale projects

Request a Quote

Looking for dependable structural bolts for your next project?

Contact Offshore Milling & Sourcing today for pricing, samples, and custom specifications.

css.php