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Thread: Allen bolt size

  1. #1
    Join Date
    Feb 2010
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    widnes cheshire
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    Allen bolt size

    Can anyone tell me the the size
    Of the two little bolts that clamp the barrel in place
    On the HW45
    I’ve rounded one
    And where’s the best place to get one
    Looked on chambers out of stock
    Cheers
    Hw100bp
    Hw77
    Artemis pp750

  2. #2
    Join Date
    Sep 2016
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    Lewes, South Saxony.
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    Quote Originally Posted by xraiderx View Post
    Can anyone tell me the the size
    Of the two little bolts that clamp the barrel in place
    On the HW45
    I’ve rounded one
    And where’s the best place to get one
    Looked on chambers out of stock
    Cheers
    I can't help you with the bolt size but I get all sorts of nuts and bolts from Namrick; http://www.namrick.co.uk/
    Usually next day delivery and considerably cheaper that Chambers although minimum order is £5.
    TTFN
    N.
    "The only difference between Men and Boys is the price they pay for their Toys."

  3. #3
    Join Date
    Dec 2003
    Location
    Cambridge UK
    Posts
    7,147
    Can you get one out to measure it? It will almost certainly be a metric size so I suspect all you need is the diameter of the threaded part and the length, although you can, of course, reduce the length of a too long one.
    Once you have this info it should be an easy matter to find replacements. You could take one of the bolts to a good tool shop and ask them ... maybe even trying your bolt in one of their nuts to ensure the thread profile matches ... just in case you have a not common thread (possible but unlikely). Or visit e.g. B&Q who may do small packs or even a visit to 'that site'.
    Cheers, Phil

  4. #4
    Join Date
    Jun 2016
    Location
    Annan
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    635

    If you meant what size is the socket

    I, like many engineer friends, don't worry about size, it's the fit that's important! If there is any slack between the hex key and socket you run the risk of damaging either or both. To remove a rounded out socket is tricky, you may be able to hammer in a sacrificial key or hex bit, or cut a groove and use a screwdriver. Some stud removers may fit, or the head can be sawn or ground off and the stud left tackled with grips. Once you have the bit out you will be able to measure the thread diameter and pitch for a replacement. Hth David

  5. #5
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    Oct 2013
    Location
    Harlow
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    37
    M3 x 6 A2 Countersunk.

  6. #6
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    Jul 2000
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    Tremar
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    About halfway down the page . . .

    http://www.modelfixings.co.uk/stainl...untersunks.htm
    www.shebbearshooters.co.uk. Ask for Rich and try the coffee

  7. #7
    Join Date
    Feb 2010
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    widnes cheshire
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    737
    Cheers
    For the help boys
    Just got the old one out
    Heat and Torx bit
    Hw100bp
    Hw77
    Artemis pp750

  8. #8
    Join Date
    Jul 2002
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    Leeds/Cheadle
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    Quote Originally Posted by xraiderx View Post
    Cheers
    For the help boys
    Just got the old one out
    Heat and Torx bit
    Did you work out the size mate, I (and i'm sure others on here) have tons of bits n bobs that might be what you need without the need to pay.
    Chairman Emley Moor F.T.C. 2023 - Misfits champ, HFT extreme champ, NEFTA hunter champ, Midlands Hunter champ, UKAHFT champ.
    https://sites.google.com/site/emleymoorftc/contact-us

  9. #9
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    Feb 2010
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    widnes cheshire
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    Quote Originally Posted by Bob Baldwin View Post
    M3 x 6 A2 Countersunk.
    I believe it’s this one Chris
    I only need one
    Hw100bp
    Hw77
    Artemis pp750

  10. #10
    Join Date
    Dec 2010
    Location
    Le Mans
    Posts
    172
    Yes, it is a 2mm allen key.

    The way I do it:
    Chop a 2mm allen wrench and keep the longer bit.
    Then knock the heads with the above using a small hammer (the idea is to break the bond before you try to undo the screws).
    Get the best quality 2mm allen key money can buy and try to unscrew; they should come loose.

    Another way would be to use a small impact screw driver if such a thing exists!

    I would avoid stainless screws in whatever alloy the barrel carrier is made from as I would be worried of galvanic corrosion.

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