[Elecraft] [Elecraft-KX] KX3 microphone nut size

[Rich NE1EE]

It is easy to cross thread nuts and screws this way. IME, machine threads...which is likely what you have here...either work or they don't. You should be able to get at least 2 clean, easy rotations. And that is for a nut that is going on a bolt/stud that will not stand proud of the nut when it is tight. That likely applies to many of the screws and nuts in the Elecraft equipment. Folks who "think" that they have a good match and that the nut just needs to be "tightened" wind up cross threading, and then you be lucky a) get the nut off, and b) get the correct one to fit. This works for all sizes...right up to, and past, engine block studs and nuts. (Experience.) Many are the times that I have wrapped my hand around a manifold, to a stud I can't see, and gently rotated the nut until I was sure that I had a proper fit.

Now...back to the KX3...this comes as a kit, yes? Then perhaps the kit manual calls out the nut size.

On 2020-08-28 13:34:-0700, Mooneer Salem wrote:
>Tried some normal 1/4"-20 hex nuts from Lowe's too (much too thick mind you, but should at least confirm if the diameter/TPI are correct) and no such luck. 
>
>Interestingly, I took off the nut from a spare SMA pigtail and it was able to mate it with the microphone connector. However, I couldn't rotate it past 1/2 turn or so and I didn't want to force it with tools and potentially damage the jack. If it was the correct size, I'd have been able to tighten it much further by hand, right?
>
>-Mooneer K6AQ
>
>On Fri, Aug 28, 2020 at 1:21 PM hawley, charles j jr <<mailto:c-hawley at illinois.edu>c-hawley at illinois.edu> wrote:
>1/4"-20Â  I think
>
>Chuck Hawley
>Â <mailto:c-hawley at illinois.edu>c-hawley at illinois.edu
>Â  
>Â Amateur Radio, KE9UW
> aka Jack, BMW Motorcycles  
>
>
>----------
>From: <mailto:elecraft-bounces at mailman.qth.net>elecraft-bounces at mailman.qth.net <<mailto:elecraft-bounces at mailman.qth.net>elecraft-bounces at mailman.qth.net> on behalf of Mooneer Salem <<mailto:mooneer at gmail.com>mooneer at gmail.com>
>Sent: Friday, August 28, 2020 3:12 PM
>To: Elecraft Reflector <<mailto:elecraft at mailman.qth.net>elecraft at mailman.qth.net>; <mailto:elecraft-kx at groups.io>elecraft-kx at groups.io <<mailto:elecraft-kx at groups.io>elecraft-kx at groups.io>
>Subject: [Elecraft] KX3 microphone nut size 
>Â 
>Hi all,
>
>Does anyone know what exactly would replace the microphone nut on the KX3?
>(I seem to have somehow misplaced mine.) The jack itself seemed to measure
>1/4" OD but some 1/4"-32 panel nuts that I found don't seem to screw into
>it.
>
>Thanks,
>
>-Mooneer K6AQ
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72/73 de Rich NE1EE
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