Q&A for How to Read a Screw Thread Callout

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  • Question
    Are the male and female referring to the threads on the adapter? Or to the threads on the two pipes that can be connected with the adapter?
    Community Answer
    Male and female refers to where the actual thread is. A Male thread is on the outside (think of the thread on a bolt or screw). A female is threaded on the inside, like you would find on the inside of a nut or the socket for a light bulb.
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  • Question
    When referring to a screw thread, what does the "20" in 1/4" *20 mean?
    Community Answer
    The 20 is the number of threads per inch.
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  • Question
    Can I sell online in bulk, since it is a rate per kg?
    Community Answer
    Yes, no problem. Just make sure you also give the weights in imperial, to save confusion.
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  • Question
    What does M10 X 1.5-6H/5g6g mean? I know it is metric with a 10 mm diameter and a 1.5 mm pitch but I don't know what the rest of it means.
    Community Answer
    The 6H/5g6g refers to the "type" of fit between mating parts. It is the tolerance allowed on the bolt threads.
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