Machine bolts are designed for secure, load-bearing connections using a nut or threaded hole. Built for strength and durability, they are widely used in construction, machinery, infrastructure, and heavy equipment applications.
At Offshore Milling & Sourcing, we provide bulk machine bolts sourced directly from trusted global manufacturers, ensuring consistency, quality, and cost efficiency at scale.
Types Available
- Standard Machine Bolts
- Fully Threaded Machine Bolts
- Partially Threaded Machine Bolts
- Heavy Hex Machine Bolts
- Structural Machine Bolts
- Square Head Machine Bolts
- Metric Machine Bolts
- Custom Per-Print Machine Bolts
Grades Available
- Grade 2
- Grade 5
- Grade 8
- ASTM A307
- ASTM A325 (Structural)
- ASTM A490
- Metric Class 8.8 / 10.9 / 12.9
Materials
- Low Carbon Steel
- Medium Carbon Steel
- Alloy Steel
- Heat-Treated Alloy Steel
- Stainless Steel 304
- Stainless Steel 316
- Specialty Alloys (upon request)
Finish & Coating Options
- Zinc Plated
- Yellow Zinc
- Black Oxide
- Hot Dip Galvanized
- Mechanical Galvanized
- Plain Finish
- Stainless (Natural Finish)
- Zinc Flake Coatings
- Custom Corrosion-Resistant Coatings
Applications
- Structural steel connections
- Industrial machinery assembly
- Construction and infrastructure
- Automotive and transportation
- Agricultural and heavy equipment
Why Offshore Milling & Sourcing?
- Direct factory sourcing for competitive pricing
- Consistent, high-volume supply
- Strict quality control and compliance
- Custom manufacturing capabilities
- Reliable logistics and delivery
Request a Quote
Looking for a dependable source for machine bolts?
Contact Offshore Milling & Sourcing today for pricing, samples, and custom specifications.



