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I'm fixing a lamp and I need a coupling nut to connect the post that contains the electrical wires to a rod that holds the shade. This looks like a normal coupling nut, but with half of the middle cut out to let the electrical wires come through.

What is the name of such a nut?

  • You mean like this ? – JPhi1618 May 2 '16 at 18:18
  • Yes. There's a bit more to the nut, but that's about right. – fgregg May 2 '16 at 18:20
  • @Mazura, I'll remove this pic now that I got an answer to avoid confusion. – fgregg May 3 '16 at 19:55
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I have no idea why, but an open coupling for a lamp is called a hickey... As in 1/4" IPS Brass Hickey:

enter image description here

I've also seen this sold on some sites as an "open cast coupling" or "open cast hickey".

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