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Thread: PG7 Thread Size

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    PG7 Thread Size

    I remember looking it up a while ago but forgot where. Is the PG7 a specific size, with it's own taps available, or do you use an equivalent thread sized tap?
    Dave

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    Re: PG7 Thread Size

    it's a specific thread, the outher diameter is 12.5 mm, pitch is 1.27 and drill size for tapping is 11.3mm

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    Re: PG7 Thread Size

    Quote Originally Posted by Edvin M  View Original Post
    it's a specific thread, the outher diameter is 12.5 mm, pitch is 1.27 and drill size for tapping is 11.3mm
    I'm not sure what you are trying to match, but......

    12.5 mm just under 1/2 inch 12.5mm = .492"

    1.27mm = .05" .05 "lead" = 20 tpi

    1/2" x 20 tpi is a standard SAE Uniform National Fine (UCF) thread.

    Tobin

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    Re: PG7 Thread Size

    Quote Originally Posted by cool_hardware52  View Original Post
    I'm not sure what you are trying to match, but......

    12.5 mm just under 1/2 inch 12.5mm = .492"

    1.27mm = .05" .05 "lead" = 20 tpi

    1/2" x 20 tpi is a standard SAE Uniform National Fine (UCF) thread.

    Tobin
    ahh.. sorry, didn't think about the UNF, only have tables for metric, UNC and withwort here

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    Re: PG7 Thread Size

    Maybe it's to do with a rEvo dream!? wake up call for Paul Raymaekers!


    Quote Originally Posted by cool_hardware52  View Original Post
    I'm not sure what you are trying to match, but......

    12.5 mm just under 1/2 inch 12.5mm = .492"

    1.27mm = .05" .05 "lead" = 20 tpi

    1/2" x 20 tpi is a standard SAE Uniform National Fine (UCF) thread.

    Tobin

  6. #6
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    Re: PG7 Thread Size

    Yeah, I have a rEvo dream, I am thinking of using, and tapping a hole in the top of a Ray scrubber. Actually, I did find some more info, and they are 12.5mm, with 20 threads per inch which is in the region of 1.25. I think there is a difference in the profile of the thread, but not sure. Really, I think I would just have to buy a specific tap. They say it is for use with conduit.

    Dave

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    Re: PG7 Thread Size

    Quote Originally Posted by Dave1w  View Original Post
    Yeah, I have a rEvo dream, I am thinking of using, and tapping a hole in the top of a Ray scrubber. Actually, I did find some more info, and they are 12.5mm, with 20 threads per inch which is in the region of 1.25. I think there is a difference in the profile of the thread, but not sure. Really, I think I would just have to buy a specific tap. They say it is for use with conduit.

    Dave
    You could be right Dave, why don't you pm Paul or Martin for confirmation, I know Martin is threading some sensor housings (HO610) in PG7 threads!

    Regards...Paul

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    Re: PG7 Thread Size

    Quote Originally Posted by Dave1w  View Original Post
    Yeah, I have a rEvo dream, I am thinking of using, and tapping a hole in the top of a Ray scrubber.
    Dave
    Mmmm...does that mean you have the H0850 3 sensor housing from Martin?

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    Post Re: PG7 Thread Size

    I know this is an old thread, but I was looking for the information so I figured I'd update it a bit.

    From this site: MARYLAND METRICS -- THREAD DATA CHARTS (6)

    80 Degree profile

    Pg Nominal Size Callout: Pg7
    Thread Form Type: Pg
    Major Diameter: 12.50 mm
    Pitch: 1.270 mm
    Threads per inch: 20 tpi
    Pitch Diameter: 11.89 mm
    Minor Diameter Male Thread: 11.28 mm
    Thread Height: 0.61 mm
    Tap Drill Diameter: 11.40 mm

    The dedicated taps are about $50 from McMaster in the US and £20 from Engineering Supplies , Taps and Dies, Wire Inserts, Thread Gauges in the UK

    -Scott

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    Re: PG7 Thread Size

    Why not just use a metric gland? M12x1,5 is widely available and even smaller. Also one could get very small M6 and M8 glands in brass which are s small you can seal very thin cables with them.

    Metric taps are cheap also!

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