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Timing Cover Screws for Pre-Unit Triumphs

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  • Timing Cover Screws for Pre-Unit Triumphs

    Can't seem to find anyone who has the correct bolts for a 1948 Triumph (3T Deluxe) timing cover. Questions: are they suppose to be: PosiDrive (Phillips)? or Fillister Head (slotted)? And what thread pitch is original? Here there are 3 different lengths specified in the parts book:

    qty. 6: E452 (short)
    qty. 2 E427 (med)
    qty. 2 E1049 (long)

    Can anyone confirm the correct 'head'? And which suppliers might have the best chance for having them in stock?

    Many thanks,
    Doug Spranger
    3T-Timing Cover Side.jpg
    Attached Files

  • #2
    26 TPI, probably 1/4-26
    The Linkert Book

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    • #3
      Filister head. Different lengths are needed for the different holes. Try British Fashioners for screws: https://britishfasteners.com

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      • #4
        Thanks for getting back to me. British Fasteners is 'out of stock' on that kit, for pre-unit Triumphs. So will have to scrounge around. Tried British Cycle Supplies and Baxter Cycle but they don't appear to have a Fillisterhead kit either. Will keep hunting. Thanks.

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        • #5
          Try walridge.com

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          • #6
            Many thanks for the lead. Will try them. Doug

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