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  1. #1
    johncee1945 Guest

    Default What tap thread system replaces whitworth?

    Hi firstly I have limited knowledge, and was upgrading whitworth taps and dies when told whitworth is obsolete. I was wondering what system replaces it? Metric? Any brand recommendations? In the past I have used P@N and told to avoid the cheap and nasty sets.

  2. #2
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    Quote Originally Posted by johncee1945 View Post
    Hi firstly I have limited knowledge, and was upgrading whitworth taps and dies when told whitworth is obsolete. I was wondering what system replaces it? Metric? Any brand recommendations? In the past I have used P@N and told to avoid the cheap and nasty sets.
    Metric is closest

  3. #3
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    Hardware stores still sell whitworth nuts & bolts ,
    so while its been obsolete for years its still serviceable.
    Regards, Bob Thomas

    www.wombatsawmill.com

  4. #4
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    Dont know who is feeding you this information or (crap) obviously an idiot,all taps and dies for bsw are still readilly available as are nuts and bolts.

  5. #5
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    where in particular can you get them might help the fellow at reasonable cost last time I went to Bunnies looking for BSW nuts bolts and taps none to be had.

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    Hi Guys,

    Most of the bolts nuts and coach bolts nickel plated and galvanized sold in Bunnies are Whitworth. All those nots and bolts loose in the bins are Whitworth. You will have to look harder to find others in the little packets probably.

    Cheers
    Brian
    Creator of Fine Firewood

  7. #7
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    When designing a new item that contains fasteners, metric threads are always called up.

    When designing an add-on for an old piece of equipment that uses imperial threads, use the same type of thread, be it BSW, UNC, UNF etc, never mix the two thread types, that's a no no.

    I have a mix of taps and dies, P&N, Suttons and Chinese. The local brands cost more, but in my experience, look and work far better than the imported ones.

    If you are going to be using the taps and dies on a regular basis, use P&N etc, otherwise, go the cheapy if you only tap one hole a year.

    Ken

  8. #8
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    I think you will find that BSW is the same as UNC which the "C" stands for Course Thread and the old Whitworth Nuts will fit on UNC bolts but as to getting spanners to fit if you haven't got a set of Whitworth Spanners you will just have to find an AF or Metric spanner to fit or resort to the old adjustable (nut rounder) shifter. Or go here and buy some http://www.justtools.com.au/category643_1.htm
    Regards Bazza

    Skype Username: bazzabushy

    "Experience is a hard teacher because she gives the test first, the lesson afterwards."
    -Vernon Sanders Law

    The views expressed by the poster are general in nature and any advice should be taken in this vein. The poster accepts no responsibility if this advice is used. When undertaking any work personal professional advice should be sought from suitably qualified persons in the field of work being undertaken.


  9. #9
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    Whitworth spanners are still made Stahlwillie and Snapon still make and sell them.

    My FIL has all my old whitworth spanners no idea how he got them

  10. #10
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    Quote Originally Posted by Barry_White View Post
    I think you will find that BSW is the same as UNC which the "C" stands for Course Thread and the old Whitworth Nuts will fit on UNC bolts but as to getting spanners to fit if you haven't got a set of Whitworth Spanners you will just have to find an AF or Metric spanner to fit or resort to the old adjustable (nut rounder) shifter. Or go here and buy some http://www.justtools.com.au/category643_1.htm
    UNC is close Barry but by no means the same, 1/2" unc is 13 TPI but 1/2" whitworth is 12 TPI , most of the other sizes are the same TPI but the thread depth is a little deeper as the thread form is slightly diffrent which means that a UNC nut on a whitworth bolt looses a fair bit of its strength and will be loose where as a Whitworth nut on a UNC bolt will be tight

    Johncee I Like to go to metric whenever possable as you only need one set of spanners but if you have whitworth UNC metric AF you need the correct size spanner like Barry Said
    neksmerj says don't mix threads and how right he is it's too easy to get into major problems with broken bolts , stripped threads etc when you have a mixture of threads on the one piece of equipment
    Ashore




    The trouble with life is there's no background music.

  11. #11
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    Go to bunnings for your handyman bits and pieces but go to an engineering suppliers for particular type thread and fastners(you will be surprised how much cheaper than bunnings they are if bunnings have them at all.

  12. #12
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    Try Coventry Fasteners.

    Or some of the mail order engineering suppliers, e.g:
    E & J Winter
    ETSA
    Small Parts
    EMCO
    M E Supplies
    Minitech
    Cheers

    Jeremy
    If it were done when 'tis done, then 'twere well it were done quickly

  13. #13
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    The speciality fastner places (Sweetmans / Searle / Atom ) at least in the West carry all sorts of taps & die's, nuts & bolts etc, curiously Whitworth stuff is usually cheaper than metric. As for spanners I find Cash Converters and other hoc places will usually have several containers of spanners, sockets etc which they don't bother to sort out, if one knows what to look for and take the time you can score good quality tools for several $ a piece. Your mileage may vary on the East Coast though.

  14. #14
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    Seeing as you are in Sydney, Nepean Boltmaster in Penrith is the place to go.

  15. #15
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    Hi johncee 1945
    Its not obsolete as it is still used in repair and maintenance. .
    Anything newly designed in this country is usually done so to the metric standards as this is the system we follow now.Metric thread for new gear is standard
    However there is a lot of still functioning /operating plant and machinery around Australia that has the Whitworth thread.

    The hardware shops are flooded with new Chinese made threads that are I suspect UNC which is made in great numbers to suit the American market.That would explain why it is cheap.


    UNC is similiar to Whitworth but thread angle which varies by 5 degrees is 55 for Whitworth and 60 degrees for UNC.

    This is from only memory ,so the lads will sort it out if I get it rrs about.

    P & N is top quality in drills taps and dies
    Grahame

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