Bulk & Factory Direct Supply
Extended Threaded Connections for Rod & Fastener Systems
Coupling nuts are elongated hex nuts designed to join two threaded rods or fasteners, creating a secure and continuous connection. Their extended length provides increased thread engagement and strength, making them ideal for structural, mechanical, and assembly applications.
At Offshore Milling & Sourcing, we supply bulk coupling nuts sourced directly from global manufacturers, delivering precision threading, strength, and cost efficiency for high-volume needs.
Types Available
- Standard Coupling Nuts
- Heavy Hex Coupling Nuts
- Metric Coupling Nuts
- Reducing Coupling Nuts
- Long Pattern Coupling Nuts
- Custom Per-Print Coupling Nuts
Grades Available
- Grade 2
- Grade 5
- Grade 8
- ASTM A563
- ASTM A194
- Metric Class 8 / 10 / 12
- Custom Mechanical Requirements Available
Materials
- Low Carbon Steel
- Medium Carbon Steel
- Alloy Steel
- Stainless Steel 304
- Stainless Steel 316
- Brass (for specialty applications)
Finish & Coating Options
- Zinc Plated
- Black Oxide
- Plain Finish
- Hot Dip Galvanized
- Stainless (Natural Finish)
- Nickel Plated
- Custom Corrosion-Resistant Coatings
Industries Served
- Construction & Infrastructure
- Electrical & Mechanical Systems
- Oil & Gas
- Industrial Machinery
- OEM Manufacturing
- Utilities & Energy
Applications
- Threaded rod extensions
- Structural tie rod systems
- Suspension and bracing systems
- Equipment assembly
- Electrical and mechanical installations
- Repair and maintenance applications
Why Offshore Milling & Sourcing?
- Direct factory sourcing for competitive pricing
- High-strength, precision threading
- Consistent quality across large production runs
- Custom engineering and per-print capabilities
- Reliable global logistics and delivery
Request a Quote
Looking for dependable coupling nuts?
Contact Offshore Milling & Sourcing today for pricing, samples, and custom specifications.



