Coupling Nuts (also called Extension Nuts) are long threaded fasteners used to connect two externally threaded parts such as threaded rods, bolts, studs, or pipes. They have internal threading throughout their length and are commonly available in hex shape for easy tightening with a wrench. Features of Coupling Nuts Fully threaded internal design High load-bearing capacity Strong grip and secure connection Available in metric & inch sizes Suitable for custom dimensions Corrosion-resistant options available Materials Available Mild Steel (MS) Stainless Steel (SS 304 / SS 316) Carbon Steel Alloy Steel Brass Types of Coupling Nuts Hex Coupling Nuts Round Coupling Nuts Reducing Coupling Nuts Heavy Duty Coupling Nuts Custom Coupling Nuts Applications Construction & structural work Industrial machinery Fabrication projects Automotive industries Hydraulic & piping systems Threaded rod extension assemblies Common Standards DIN 6334 ASME B18.2.2 ASTM / SAE specifications Coupling Nuts Manufacturer India supply standard and customized sizes as per customer drawings, material grades, and industrial requirements.

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