Are you referring to the screws that mount the tube sockets?? Common thread sizes are 6-32, 8-32 and 10-32 or 10-24 . Mike
On Sunday, March 16, 2025 at 05:32:41 AM EDT, Fran?ois via groups.io <18471@...> wrote:
Hello
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On my Drake amplifier, I would like to install additional hardware using existing threaded rods (3-500Z support spacers). If I measure the thread diameter, I get a reading of 3.3 mm (1/7 inch). The existing nuts measure 6.1 mm (1/4 inch) across the flat.
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Can you tell me the US thread size for this type of thread?
