Coupling Nuts

  • 621.COUPNUT.Z
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Coupling nuts, or extension nuts, are used to connect two externally threaded shafts such as threaded rod. The coupling nut has internal threading that allows the external threaded shaft to be inserted on both sides of the coupling nut, joining the two threaded pieces together. If you require stainless steel for increased corrosion resistance, please see our full offering of stainless coupling nuts as well.
  •  Standard coupling nuts, A563 Grade A
  •  Metric coupling nuts, Class 6

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