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Thread: Screw thread for 77 stock screw?

  1. #1
    Join Date
    Jun 2000
    Location
    Rotherham,S.Yorks
    Posts
    1,884

    Screw thread for 77 stock screw?

    I have an old 77 in a target stock and I assume the stock screw(screw in front of trigger) is not quite right as when I unscrew it, it takes the retaining nut with it.

    I then have to use pliers and a cloth wrapped around the retaining nut and an Allen key to undo these, then reattach the nut to the action.

    So what do s the thread of this screw?

    Regards,

    Matt

  2. #2
    Join Date
    Jul 2000
    Location
    Shebbear, N Devon
    Posts
    13,086
    Aren't they an unusual size, m7?
    www.shebbearshooters.co.uk. Ask for Rich and try the coffee

  3. #3
    Join Date
    May 2008
    Location
    Quigley Hollow, Nuneaton
    Posts
    10,563
    The thread into the trigger block is M7, the thread into the Anti Beartrap lug is M6.

  4. #4
    Join Date
    Jun 2000
    Location
    Rotherham,S.Yorks
    Posts
    1,884
    Ok thanks guys.


    Matt

  5. #5
    Join Date
    Jun 2012
    Location
    ruthin
    Posts
    1,418
    Perhaps your screw is just too long and bottoms in the lug when tightened then brings the lug with it on removal.

  6. #6
    Join Date
    Mar 2011
    Location
    loughborough
    Posts
    505

    screw thread

    I think it is a finer pitch than standard 7mm .

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