Bolt/Thread Size for Spare?

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  • NC Rover
    2nd Gear
    • Dec 2007
    • 288

    Bolt/Thread Size for Spare?

    Trying to find the Bolt Size / thread for the hardware to mount the spare on the hood. Anyone?
    1971 Series IIa Hybrid: 2.5L MILSPEC 5-Main Bearing Engine|Turner Engineering Performance Head w/ oversized hardened steel valves & phase shift/increased lift cam|LT77 Tranny/LT230 Transfer Case|11mm Ignition Wires/Super Coil|Jacobs Ignition/Petronix Ignitor|D90 Axles|Galvy Frame|Old Man Emu Coils|Cust Rear/Side Fuel Tanks|Cust Drive Shafts|
  • Jim-ME
    Overdrive
    • Oct 2006
    • 1379

    #2
    The last I remember it is a thread pitch that you can't readily get unless you order the specific bolt from a Rover parts supplier. I may have an extra. It's yours if you want it.
    Jim

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    • Firemanshort
      2nd Gear
      • Nov 2006
      • 282

      #3
      These bolts are Whitworth thread - tough to find unless you order purpose biult hardware.
      Firemanshort
      1980 Stage One
      (Past owner of 1973 Series III - Highlander)

      Comment

      • friar mike
        1st Gear
        • Nov 2007
        • 116

        #4
        Whitworth

        The only diffrents from UNC ( usa corse) and Whitworth thread is the pitch USA is 60 degree and Whitworth is 55 degree.
        Onward threw the fog

        Comment

        • NC Rover
          2nd Gear
          • Dec 2007
          • 288

          #5
          Here is the deal. I have the original bolts to mount the spare. However, they are for the original tire size, which I no longer have. I'm looking for a bolt with the same thread...just a lot longer so I can make it work.

          Is there anything close that will work with the particular threads in the hood?

          Trying to figure a way to secure the spare on the hood. Original bolts are too short.
          1971 Series IIa Hybrid: 2.5L MILSPEC 5-Main Bearing Engine|Turner Engineering Performance Head w/ oversized hardened steel valves & phase shift/increased lift cam|LT77 Tranny/LT230 Transfer Case|11mm Ignition Wires/Super Coil|Jacobs Ignition/Petronix Ignitor|D90 Axles|Galvy Frame|Old Man Emu Coils|Cust Rear/Side Fuel Tanks|Cust Drive Shafts|

          Comment

          • TedW
            5th Gear
            • Feb 2007
            • 887

            #6
            I had the same problem.

            No one stocks a longer bolt so I drilled and tapped for a larger (and longer) bolt. Works swell, except that the head size is different - not a big deal, in any case.

            Comment

            • NC Rover
              2nd Gear
              • Dec 2007
              • 288

              #7
              Originally posted by TedW
              No one stocks a longer bolt so I drilled and tapped for a larger (and longer) bolt. Works swell, except that the head size is different - not a big deal, in any case.
              Good deal. Thanks for the info! May be doing that shortly.
              1971 Series IIa Hybrid: 2.5L MILSPEC 5-Main Bearing Engine|Turner Engineering Performance Head w/ oversized hardened steel valves & phase shift/increased lift cam|LT77 Tranny/LT230 Transfer Case|11mm Ignition Wires/Super Coil|Jacobs Ignition/Petronix Ignitor|D90 Axles|Galvy Frame|Old Man Emu Coils|Cust Rear/Side Fuel Tanks|Cust Drive Shafts|

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