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  1. #1
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    Default Gedore 80mm Ratchet Ring Spanner

    I picked up this Gedore 80mm Ratchet ring Spanner Gedore80mmRatchetringspanner.jpgat a local market for cheap enough to be a wall hanger. I am wandering if someone might know what size bolt and nut would fit this toy? I am toying with the notion to turn the bolt and make the corresponding nut out of wood, just to display it.
    Pat
    Work is a necessary evil to be avoided. Mark Twain

  2. #2
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    You mean 80mm doesn't tell you what size nut/bolt it fits

  3. #3
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    In metric terms, M6 is 10mm A/F - so if the spanner is 80mm A/F, I'd say it would be M45 or M50.

    Michael

  4. #4
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    Ueee is offline Blacksmith, Cabinetmaker, Machinist, Messmaker
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    Hi Pat,
    Found this Dimensions of Metric Hex Nuts 80mm doesn't seem to be an ANSI standard, most charts only go to M36, which has a 55mm head size
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  5. #5
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    An 80mm spanner would fit an M50 threaded bolt.

    Or you could make a 2" Unified with a slightly bigger head; normally it would have a 3" AF hex head (75mm). It all depends on what you have available for cutting the thread but as this is just for an ornament 2" UNC, 2" WHIT or M50 will all do.

  6. #6
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    Quote Originally Posted by wheelinround View Post
    You mean 80mm doesn't tell you what size nut/bolt it fits
    It actually won't... ISO standard says AF = 1.8 x thread diameter for noin-structrual and AF = 2 x thread diameter for structural. However that is only applied to about M20....
    Closest I can find for AF = 80mm is for M52, which comes in standard pitches of 5,4,3,2 and 1.5mm
    Cheers, Joe
    retired - less energy, more time to contemplate projects and more shed time....

  7. #7
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    Quote Originally Posted by wheelinround View Post
    You mean 80mm doesn't tell you what size nut/bolt it fits
    That would be Whitworth spanners that most seemed not to like much

  8. #8
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    Default Gedore 80mm Ratchet Ring Spanner

    Quote Originally Posted by Stustoys View Post
    That would be Whitworth spanners that most seemed not to like much
    Ahem!!

  9. #9
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    Thanks boys, I finally remembered that I had the Fastener Black book on my desk, looked up the Spanner Selection Chart on Pg 53, and for an 80mm spanner, M52 is the bolt. The nut is 80mm max x 42.9mm thick (Style 1 - Grade C, Pg 148)
    Pat
    Work is a necessary evil to be avoided. Mark Twain

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