Get in touch with our team today to discuss your coupling nut requirements.
Coupling Nut Manufacturer in India
Hex Coupling Nuts
Hex Coupling Nuts Manufacturer in India
Coupling Nuts, also known as Extension Nuts or Long Hex Nuts, are threaded fasteners used to join two male-threaded components, such as threaded rods or studs. These nuts provide extended thread engagement, making them ideal for alignment and length adjustments in structural and mechanical assemblies.
Premium Quality Hex Coupling Nuts
At AN Fastener Supplier, we specialize in manufacturing high-performance Coupling Nuts in various sizes, materials, and finishes to meet international standards and project-specific needs.
Key Features of Coupling Nuts
- Extended Length: Enables secure connection between threaded rods
- Precision Machining: Tight tolerances ensure accurate alignment
- Multiple Thread Types: Available in UNC, UNF, ISO, BSW, ACME
- High Tensile Strength: Designed for heavy-duty and high-load applications
Specifications of Coupling Nuts
International Standards
ASME, DIN, ISO, BS, UNI, IFI, Indian IS, Polish PN, CSN, SAE
Size Range
- Metric Sizes: M2 to M160
- Imperial Sizes: 3/8″ to 8″
Thread Forms
UNC, UNF, ISO, BSW, ACME
Types Available
- Hex Coupling Nuts
- Round Coupling Nuts
- Square Coupling Nuts
- Reducing Coupling Nuts
- Metric & Imperial Coupling Nuts
Materials Offered
- Stainless Steel: 304, 304L, 316, 321, 347, 904L
- Carbon Steel
- High Tensile Steel: Grades 8.8, 10.9
- Alloy Steel: ASTM A193 B7, B16, A194 2H, 2HM
- Nickel Alloys: Inconel, Monel, Hastelloy, Nimonic
- Non-Ferrous Metals: Brass, Copper, Aluminium Bronze, Silicon Bronze, Phosphor Bronze
Coating & Finishing Options
- PTFE Coated
- Hot Dip Galvanized
- Yellow / Blue / Black Zinc Plated
- Zinc Cobalt & Nickel Plated
- Aluminium Zinc Flake Coated
- Black Phosphate
Applications of Coupling Nuts
- Construction: Join threaded rods in concrete anchoring and steel structures
- Automotive: Used in assemblies requiring adjustable fastener lengths
- Oil & Gas: Secure and extend stud bolts in flanged joints
- Electrical & Plumbing: Used to connect rods and pipes securely
- General Engineering: Ideal for custom fabrication and maintenance projects
Hex Coupling Nuts properties
Why Choose AN Fasteners Supplier for Coupling Nuts?
- In-house precision manufacturing
- Wide range of materials and coatings
- Global quality standards and certifications
- Custom solutions available for bulk orders
- Reliable delivery and export-ready packaging
📞 Need Coupling Nuts in Bulk or Custom Sizes?
Contact AN Fastener Supplier today for high-strength Coupling Nuts tailored to your exact project needs. We deliver across India and to global markets with export-compliant packaging.