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No machinists here anymore?
On Oct 16, 10:12*pm, "Ed Huntress" wrote:
I checked mine with a loupe; it's definitely 18 tpi.
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Ed Huntress
Yours may be 18 tpi, but the standard is 20 tpi.
http://houseofantiquehardware.com/s.nl/it.A/id.3517/.f
Dan
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