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Coupling Nuts

4 products

  • Coupler Nuts
    SKU: ACN14-134

    Conquest A563 Coupler Nuts

    Diameters
    1/4" 3/8" 1/2" 5/8" 3/4" 7/8" 1" 1-1/4" 1-1/2"
    Finish
    Plain Hot Dip Galvanized Zinc
    • For use with coarse thread threaded rod
    • Carbon steel for general use
    starting at
    $0.85
    Ships today when you order in the next 5 hours .
    starting at
    $0.85
    Ships today when you order in the next 5 hours .
  • Coupler Nuts
    SKU: CN38-118SS

    Conquest Coupler Nuts - Stainless Steel

    Diameters
    3/8" 1/2" 5/8" 3/4" 7/8" 1"
    Type
    18-8 Stainless Steel 316 Stainless Steel
    • For use with coarse thread threaded rod
    • Maximum corrosion resistance for harsh environments
    starting at
    $2.19
    Ships today when you order in the next 5 hours .
    starting at
    $2.19
    Ships today when you order in the next 5 hours .
  • Coupler Nuts
    SKU: ARCN12-38-114SS

    Conquest Reducing Rod Coupler Nuts - 18-8 Stainless Steel

    Diameters
    1/2" to 3/8" 5/8" - 1/2" 3/4" to 5/8"
    • For use with coarse thread threaded rod
    • Maximum corrosion resistance for harsh environments
    starting at
    $4.79
    Ships today when you order in the next 5 hours .
    starting at
    $4.79
    Ships today when you order in the next 5 hours .
  • Coupler Nuts
    SKU: ARCN12-38-114Z

    Conquest Reducing Rod Coupler Nuts - Zinc

    Diameters
    3/8" - 1/4" 1/2" to 3/8" 5/8" - 1/2" 3/4" - 5/8"
    • For use with coarse thread threaded rod
    • Zinc finish for added corrosion resistance
    starting at
    $0.68
    Ships today when you order in the next 5 hours .
    starting at
    $0.68
    Ships today when you order in the next 5 hours .

Coupling Nuts

Coupling nuts, also known as extension nuts or long nuts, are specialized female-threaded fasteners used to join two male threads of the same diameter. Commonly paired with threaded rod, they are vital for extending bolted connections in structural, mechanical, and industrial applications.

These fasteners are frequently used in tie-down systems, bracing, and framework assemblies where length adjustments or component extensions are required. The hexagonal body design allows for easy tightening and loosening with a standard wrench, providing straightforward installation in the field.

Coupling nuts are available in a variety of finishes, including plain, hot dip galvanized, and zinc-coated to suit environmental and project-specific needs. Stainless steel options offer excellent corrosion resistance, making them ideal for marine, outdoor, or high-moisture applications.

Designed for durability and compatibility, our coupling nuts deliver reliable performance in both temporary and permanent assemblies.

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