Wanted: M9 Left Hand Thread Nut With Fine 1mm Pitch

Discussion in 'Technical Help' started by Borgo Panigale, Oct 12, 2018.

  1. Does anyone know where I might get one of these? I've tried just about every nut n bolt merchant and most do not carry M9, let alone with added complexities outlined above...

    Rebuilding a 100cc Ducati Cadet and need this nut for one end of the crank

    Help!

    Thanks
     
    #1 Borgo Panigale, Oct 12, 2018
  2. How about using a smaller bore nut (M8? or maybe an imperial size?) and re-tapping it with a M9 x 1.00 LH tap?
     
    #2 Derek, Oct 12, 2018
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  3. Good idea, thanks Derek
     
    #3 Borgo Panigale, Oct 12, 2018
  4. That sounds suspiciously like the lh threaded nut used to hold vespa flywheels on. May be worth checking.
     
    #4 bootsam, Oct 12, 2018
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  5. Thanks for that Bootsam, I spotted one for sale, phoned the seller, but he insisted it wasn’t left hand/reverse thread - didn’t make much sense to me, so I left it. I’ll try someone else at the Classic Bike Show at Stafford tomorrow

    Thanks again
     
    #5 Borgo Panigale, Oct 12, 2018
    • Useful Useful x 1
  6. A Google search shows the Vespa nut to be 12mm X 1.00 and LH thread
     
    #6 Derek, Oct 12, 2018
    • Useful Useful x 1
  7. It must be like the Cadet, M12 one end, M9 the other. On the Cadet, however, it’s the M9 that’s LHT and the M12 RHT
     
    #7 Borgo Panigale, Oct 13, 2018
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