Thread: Wanted: Fitting Air pump
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Old Today, 07:07
Mike K's Avatar
Mike K Mike K is offline
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Default Confused

Quote:
Originally Posted by Larry Mass View Post
The bolt arrived and is 9/16 national fine thread so it is not a match. The bolt i got from Robert is definitely 18 threads per inch.
Larry

Hi Larry

I’m confused now. 9/16 unf is 18 tpi.. I wrote earlier, there's a good chance it is 1/4 National Pipe , which is 18 TPI.
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