🔩 Long Nut / Coupling Nut – For Rod Extensions & Secure Joining | Neo Fasteners
Long Nuts, also known as Coupling Nuts, are internally threaded fasteners with extended length, designed to connect two male-threaded components such as threaded rods, bolts, or studs. These nuts provide strong axial alignment and are widely used in construction, scaffolding, machinery, HVAC, electrical fittings, solar structures, and heavy-duty fabrications.
At Neo Fasteners, we manufacture and supply high-quality Long Nuts in various shapes, materials, thread types, and finishes for both metric and inch systems.
✅ Key Features
- Internally threaded full-length nut for axial extension
- Designed for connecting threaded rods, studs, anchor bolts
- Hexagonal outer profile for easy tightening with spanner or wrench
- Available in standard and customized lengths
- Suitable for static and dynamic load-bearing joints
- Also available with internal locking mechanisms (on request)
🔺 Variants Available
- Standard Long Hex Nut – Most commonly used
- Heavy Pattern Coupling Nut – For higher load applications
- Round Coupling Nut – For concealed or aesthetic fittings
- Weldable Long Nut – With plain finish and chamfered edges
- Slotted Long Nut – For split-pin or locking mechanism
- Customized Thread Length / Bore Type – As per drawing
🧱 Material Options
- Mild Steel (MS) – For general and construction use
- High Tensile Steel (Grade 8.8, 10.9) – For structural and heavy-duty loads
- Stainless Steel (SS 304 / SS 316) – For corrosion-resistant and marine applications
- Brass / Copper Alloy – For electrical conductivity or decorative fittings
- Nylon – For lightweight, non-metallic applications (on request)
🎨 Surface Finishes
| Finish | Use Case / Feature |
|---|---|
| Self-Color (Black) | For welding or industrial use |
| Zinc Plated (White/Yellow) | Corrosion protection |
| Hot Dip Galvanized (HDG) | Ideal for outdoor/structural works |
| Nickel / Chrome Plated | Aesthetic or electrical use |
| Geomet / Dacromet | RoHS & salt spray resistant |
📏 Available Sizes – Metric & Inch
| Metric Sizes | Length Range | Thread Options |
|---|---|---|
| M4 to M48 | 10 mm to 200 mm | Coarse / Fine / Trapezoidal / ACME / BSW / BSP |
| Inch Sizes | Thread Types |
|---|---|
| 3/16" to 2" | UNC / UNF / UNEF / Pipe Threads |
Custom lengths, diameters, and threads can be manufactured on demand.
📐 Standards Followed
- DIN 6334 – Hex Coupling Nut (Standard type)
- ISO 4036 / ISO 4037 – Coupling nuts (Metric)
- ASME B18.2.2 – Inch hex nuts & coupling nuts
- Conforms to ISO 9001:2015 and RoHS Directives
🧰 Applications
- Construction: Beam connections, scaffolding rods
- Solar: Panel frame extensions and support rods
- Industrial: Joining of machine parts or pipe structures
- Electrical: Mounting brackets and panel extension rods
- Plumbing: Pipe fittings with threaded couplers
- Mechanical: Spindle adjustment and shaft coupling
- Fabrication: Customized jigs and frames
📦 Packaging & Supply
- Standard pack: 50 / 100 / 200 pcs per carton
- Bulk pack: 25 kg / 50 kg export-grade corrugated boxes
- Special: Individual polybags or kits for OEMs
- Test Certificates, TDC, and drawings supplied on request
🔗 Related Products
- Threaded Rods (MS / SS / HT / Brass)
- Hex Nuts | Dome Nuts | Flange Nuts
- Weld Nuts | Connector Studs
- Coupling Studs (Double-Ended Threaded Rods)
📞 Contact Neo Fasteners
📧 Email: neofasteners@yahoo.com
📞 Call/WhatsApp: +91-96328 07665
🌐 Websites:
📍 Location: Bengaluru, Karnataka, India