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binding post replacement nuts

Hello,

Misplaced the binding post nuts (if that's even what they're called )for my speakers. Looked everywhere, and can't seem to find replacement nuts on any site, and a simple nut from the hardware store won't fit as the thread pitch is very very fine on the binding posts.

Speakers are Infinity Intermezzo 2.6p the passive version so the nuts completely screw off the post.

I have tried nuts from about 8 other speakers I own, and nothing seems to fit right.

Suggestions as to where to find nuts, OR do I have to buy a whole new set of binding posts that come with the nuts.

Thanks!
See pictures for nuts and dimensions.

https://drive.google.com/open?id=16mEUtjTxmIfSnCl1BpYBvFt0PRnnId-w
stevethe4th
sfar's avatar
sfar
1,760 posts
 
I can't read the markings on the ruler in the picture very well but if it is metric it's likely to be M8, M10 or M12, but impossible to know whether it's coarse or fine thread without some very precise measuring, or getting nuts of each diameter and pitch to try.

https://www.carrlane.com/en-us/engineering-resources/technical-information/design-standards-and-engineering-information/inch-and-metric-thread-standards

stevethe4th OP
37 posts
 

Thanks for all the replies, I thought it would be easier, BUT one big revelation. I stumbled across the solution on accident when fixing my DIRECTV receiver. Turns out the nut fits an F-type connector. Connectors mate using a ​3⁄8 in-32 unified extra fine (UNEF) thread

MIKE—HK / Infinity met my expectation of a low level of service and had no clue. Apparently it’s not a ‘stock’ post like you would think, turns out NONE of the 13 other speaker nuts I tried fit. I tried some off my power amps, subs, and other speakers.

SFARI—I tried that thinking it would certainly be one standard but it’s not. Turns out it’s the extra fine connector which is not readily available.

 

Thanks for all the help, now I just need to find the right nut to do the job.


sfar's avatar
sfar
1,760 posts
 
Thanks for the reply, that would never have occurred to me. What a strange choice of a connector for a binding post. These might work if you have spade connectors on the speaker cables and a small wrench.
https://www.amazon.com/Pack-Four-Hex-Nuts-Switchcraft/dp/B06XY7TMNQ/ref=sr_1_18?gclid=Cj0KCQjwjYHpBRC4ARIsAI-3GkHn-rgS51gTJtKaFEw1fDH17VcZRVC-BOEdbeVVb2og1gMxLccX6fgaAvwlEALw_wcB&hvadid=352717813573&hvdev=c&hvlocphy=9028289&hvnetw=g&hvpos=1t1&hvqmt=e&hvrand=6367174195805538541&hvtargid=kwd-777882224135&hydadcr=288_9783654&keywords=3%2F8+x+32+nut&qid=1562415084&s=gateway&sr=8-18
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