That depends on which one too. My query to Grok: “What is the size of the ground screw on a K3“. It’s always good to be skeptical of an answer you get whether human or AI.
73, Bill WE5P Comfortably Numb > On Aug 23, 2025, at 20:01, Jerry via Elecraft <elecraft@mailman.qth.net> > wrote: > > Hello all, > > Not to belabor the point of AI, but if you don't provide sufficient > information, then AI will give you, what you think is incorrect return > information. I give Microsoft Co Pilot the following query: > "What is the diameter, pitch, and length of the Elecraft K3S external earth > ground screw?" > > And it's answer was is: > The Elecraft K3S external earth ground screw is not explicitly detailed in > the standard manuals or product documentation available online. However, > based on typical amateur radio transceiver chassis grounding practices and > user reports from Elecraft forums, the screw is most likely: > > Diameter: #6-32 (approximately 3.5 mm) > > Thread pitch: 32 threads per inch (standard for #6-32 screws) > > Length: Typically 1/4" to 3/8" (6.35 mm to 9.5 mm), depending on the chassis > thickness and whether a lug or ring terminal is used > > This screw is usually located on the rear panel of the K3S and is intended > for connecting a ground wire to reduce RF interference and improve safety. > > If you're planning to replace or install a ground screw, I recommend using a > stainless steel #6-32 machine screw with a star washer and ring terminal for > secure contact. For absolute confirmation, you might want to check the K3S > Assembly Manual or contact Elecraft support directly. > > AI is pretty good but it depends upon how you word the question. I'm pretty > sure that somewhere in the Elecraft's manuals there is a reference to a 4-40 > screw and words to reflect a ground. Where I do not know unless AI grab the > information about the areas on the K3 case which the builder has to be sure > that is cleared of paint and/or masking before the builder screws in the 4-40 > screws that hold the case together. > > > -----Original Message----- > From: elecraft-boun...@mailman.qth.net <elecraft-boun...@mailman.qth.net> On > Behalf Of Greg Beat via Elecraft > Sent: Saturday, August 23, 2025 12:22 PM > To: maxr...@gmail.com > Cc: elecraft@mailman.qth.net > Subject: Re: [Elecraft] K3S ground screw > > The ground screw for the Elecraft K3S is a 4-40 (SAE) threaded screw. > A 4-40 screw has a number 4 diameter and 40 threads per inch. > > Although the exact length can vary depending on what you are connecting, the > manuals (Elecraft) often refer to using 1/4" or 3/16" screws of this type for > internal assembly. > For a ground connection, you would use an appropriately sized lug and wire > that matches the screw's thread (Elecraft #E770091) > > Answered by: Gemini, Google’s Artificial Intelligence (AI) > *** > Assistance by W9GB, supplying e-mail ISP. > > Elecraft P/N E770091 : 33 foot Ground Wire with Lug. > https://elecraft.com/products/e770091_e77009133-ground-wire-with-lug > > == > Date: Sat, 23 Aug 2025 10:27:13 -0400 > From: Bill DeVore <maxr...@gmail.com> > To: elecraft@mailman.qth.net > Subject: [Elecraft] K3S ground screw > > Does anyone know the specs on the grounding screw? > Dia, pitch and length? > Bill - W3PNM > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html Message > delivered to w...@jetbroadband.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to weave...@usermail.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
