Wierd threads part 2
"Randy333" wrote in message
...
I have a bunch of taps I got at auction. marked .120-102
Any one need some? the thread is like fuzz.
IIRC they were from GE in New York.
Any idea what these were for?
Remove 333 to reply.
Randy
Fine threads like that are often used for adjusters for optical mounts.
Typically they are an even 100 tpi or 80 tpi. 102 tpi is pretty close to
0.25 mm pitch. Sounds like it is for an adjusting screw with a dial
calibrated in millimeters on a device generally designed in inches.
|