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Thread: Wing nuts for gauge panel on TR 3

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    Wing nuts for gauge panel on TR 3

    Hi,
    Can someone tell me what size and thread are the wing nuts on the gauge panel of the TR 3? I lost mine and need to buy four new ones!
    thanks,
    Dennis

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    Yoda CJD's Avatar
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    Re: Wing nuts for gauge panel on TR 3

    I believe they are 2BA...whitworth...and brass.
    John

    1955 TR2

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    Re: Wing nuts for gauge panel on TR 3

    Quote Originally Posted by CJD View Post
    I believe they are 2BA...whitworth...and brass.
    Hello John,
    thanks for your response
    Dennis

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    Jedi Knight Tr3aguy's Avatar
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    Re: Wing nuts for gauge panel on TR 3

    Haha I did not know they were wing nuts.... mine had regular nuts on them.
    JP TS 35123 L (Family Resto)
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    Re: Wing nuts for gauge panel on TR 3

    Quote Originally Posted by Tr3aguy View Post
    Haha I did not know they were wing nuts.... mine had regular nuts on them.
    The brass whitworth wing nuts are difficult to find. Not off the shelf items unless one of the big 3 contracted some out. Marv may have some used ones, though?!?
    John

    1955 TR2

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    Re: Wing nuts for gauge panel on TR 3

    I thought Triumph used US sizes wherever possible. I chased the threads with a 10-32 die
    and felt no resistance at all ( & no metal shavings) so I bought 10-32 brass wing nuts at
    the hardware store.

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    Re: Wing nuts for gauge panel on TR 3

    Funny, I always thought they used Whitworth as much as possible just to mess with us after that "revolution" thing, LOL. A few of the whitworths are close enough to retap to more standard threads. Others are not.
    John

    1955 TR2

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    Re: Wing nuts for gauge panel on TR 3

    10-32 is 32 TPI 0.190 dia and 2BA is 31.36 TPI 0.185 dia so there is almost no difference between them. It may be harder to get a 2BA to nut to go on a 10-32 bolt than a 10-32 nut on a 2 BA bolt.

    David

    Will save the British nut joke for later.
    TR3A TS75524L

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    Re: Wing nuts for gauge panel on TR 3

    Quote Originally Posted by 6TTR3A View Post
    I thought Triumph used US sizes wherever possible. I chased the threads with a 10-32 die
    and felt no resistance at all ( & no metal shavings) so I bought 10-32 brass wing nuts at
    the hardware store.
    Same here
    PeterK
    1958 TR3A 1966 TR4A both HVDA

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    Re: Wing nuts for gauge panel on TR 3

    Stock up on those wing nuts......I'.ve had several jump into the TR3 Black Hole of Missing Hardware.

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    Re: Wing nuts for gauge panel on TR 3

    I've found most of the threads smaller than 1/4" on my TR3A are BA. Mostly 2BA and 4BA. I bought some BA taps and dies from British Tools and Fasteners. McMaster has brass wing nuts (they call them thumb nuts). Get some in 8-32, then just drill and tap for 2BA.

    https://www.mcmaster.com/92771A491

    https://britishfasteners.com/index.php/catalogsearch/result/?q=+index+


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