It depends on which AI you ask. Per Grok: Bill, the ground screw on the Elecraft K3 transceiver’s rear panel is a 6-32 thumbscrew. It measures 1/2 inch long with a 3/8 inch diameter knurled head (part number E700070). This secures the ground connection using two #6 flat washers.
73, Bill WE5P Comfortably Numb > On Aug 23, 2025, at 12:57, Jack Brindle via Elecraft > <[email protected]> wrote: > > Interesting. Perhaps AI isn’t all it is being touted. > > According to the K3S Manual, the ground screw is a #6-32 thumbscrew, Elecraft > Part Number E700070. > > As I recall, it is at least 1/2” in length (probably 3/4”), but it has been a > long time since I had the ground screws out of my K3s. > It also has two #6 flat washers on the shaft. > > I would note that the same thumbscrew is used on other Elecraft products. > > 73, > Jack, W6FB > >> On Aug 23, 2025, at 11:22 AM, Greg Beat via Elecraft >> <[email protected]> wrote: >> >> 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 <[email protected]> >> To: [email protected] >> 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:[email protected] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to [email protected] > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
