Points Nut (6-38 thread?)

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  • 83lee
    Low Range
    • May 2008
    • 36

    Points Nut (6-38 thread?)

    Having just rebuilt my Lucas 25D distributor, I thought a Nylock nut would make sense on the points stud (you know, where the condenser and other wires connect)...or at least a few of the correct size nuts in the spare parts bag.

    I'll bet it's a real common size that one could obtain anywhere, because it's so important and you could easily lose it out in the woods if you had to change points. Looks like a 6-32...

    Nope. Hmmm. Metric? Nope. OK, let's get out the caliper and thread gauge.

    Major diameter 0.138 inches. 38 threads per inch.

    I can't believe it! A 6-38?? Who ever heard of a 6-38. I don't think that exists in the known universe...except from Lucas.


    I've always got a good chuckle out of the BSF stuff and Lucas jokes, but this is BAD. Somebody set me straight. Where am I going wrong on this?
  • jp-
    5th Gear
    • Oct 2006
    • 981

    #2
    6-40 is fairly common, never heard of 6-38. You sure it's not a 6-40?
    61 II 109" Pickup (Restomod, 350 small block, TR4050)
    66 IIA 88" Station Wagon (sold)
    66 IIA 109" Pickup (Restomod, 5MGE, R380)
    67 IIA 109" NADA Wagon (sold)
    88, 2.5TD 110 RHD non-hicap pickup

    -I used to know everything there was to know about Land Rovers; then I joined the RN Bulletin Board.

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    • 83lee
      Low Range
      • May 2008
      • 36

      #3
      I thought that it might be a 6-40, but measured it multiple times.

      My thread gauge could be wrong...I have a cheap India one, maybe it's time to invest in a Starrett. Don't have any 6-40 nuts laying around.

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      • 4flattires
        4th Gear
        • Aug 2007
        • 424

        #4
        One word

        Ace Hardware....

        Ok, so it's two words. I have purchase 40tpi from them before. Great fastener selection, although your local selection may vary.

        Jeff
        64 SIIa 109 all stock
        69 SIIa 88 all stock
        Old tractors
        New Harleys
        Old trucks

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