On May 31, 2:07 pm, "N Cook" wrote:
For period 1970 to 2000, whatever they are, they are not very common in
Europe. Coarser thread , diam for diam, than the usual European mm and BA.
Common sizes are about 0.132 in outside diam. , pitch 32 TPI, would they be
UNC 6 ?
and 0.11 inch od and TPI about 40 , would they be 4 UNC ?

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Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list onhttp://home.graffiti.net/diverse:graffiti.net/

Yeah, 6-32 and 4-40 two very common thread sizes in US, even today.