200 Tow strap bolt

Discussion in 'Clio General Chat' started by tel4tel, Oct 10, 2017.

  1. tel4tel

    tel4tel Gold Member

    69
    Farnham
    Golf GTD
    Hi all
    I recently purchased a OMP tow strap and wanted to fit it. But the holes are too small for an m20 Bolt and is not wide enough to be drilled. I have seen the previous posts regarding tapping a m12 Bolt to an m20 thread and wondered if anyone could make me one if pay for it. I don't have access to any tools at present so it's tough to do. Please pm if you can. Otherwise I'm going to have to send it back. Many thanks Terry
     

  2. sevenfourate

    sevenfourate Devotee of OCD Paid Member

    Lowestoft, England.
    Racing Blue RS-200
    Hi Terry.

    You’re at least the 3rd person on here recently to want one of these.......

    As I’ve said previously to both of those people: If YOU do the research and find out / measure exactly what you need: and give me a basic drawing I should be able to make you one of these no worries.
     
  3. tel4tel

    tel4tel Gold Member

    69
    Farnham
    Golf GTD
    Fantastic I will get the information together.
     
  4. tel4tel

    tel4tel Gold Member

    69
    Farnham
    Golf GTD
  5. tel4tel

    tel4tel Gold Member

    69
    Farnham
    Golf GTD
    Hi Sevenfourate

    Please see the attached diagram.
    Many thanks

    Terry
     

    Attached Files:

  6. tel4tel

    tel4tel Gold Member

    69
    Farnham
    Golf GTD
    ~Sorry good spot its 21cm I had a dodgy ruler:chris1:

    Here's the correct diagram
     

    Attached Files:

  7. J90RDN

    J90RDN Paid Member

    380
    Leicestershire
    Clio 197 - Track
    I'd be interested in one of these if you are making a batch
     
    sevenfourate likes this.
  8. sevenfourate

    sevenfourate Devotee of OCD Paid Member

    Lowestoft, England.
    Racing Blue RS-200
    Can’t read / see the drawing clearly on my phone at all Terry - I’ll look tonight at home.

    I take it all dimensions, thread lengths and pitch’s etc are on there ?
     
    Pav likes this.
  9. tel4tel

    tel4tel Gold Member

    69
    Farnham
    Golf GTD
     
  10. sevenfourate

    sevenfourate Devotee of OCD Paid Member

    Lowestoft, England.
    Racing Blue RS-200
    I saved the drawing and I can now see it.

    All clear apart from no thread pitch on either end given....
     
  11. tel4tel

    tel4tel Gold Member

    69
    Farnham
    Golf GTD
    Hi mate
    Sorry I did it on a Microsoft paint..
    Yes but I did not know the pitch for m20 thread.

    This is the spec for the M12 30mm Bolt I plan to use
    • Thread size M12 x 1.75mm pitch.
    • Thread diameter 12mm.
     
  12. J90RDN

    J90RDN Paid Member

    380
    Leicestershire
    Clio 197 - Track
    I can get the thread pitch of the tow bolt in an hour or so if no-one knows it. Leave it with me.
     
    sevenfourate likes this.
  13. tel4tel

    tel4tel Gold Member

    69
    Farnham
    Golf GTD
    i can measure the pitch on the end of the Renault towbar tonight. is it the tip of the thread to the tip of the thread?
     
  14. J90RDN

    J90RDN Paid Member

    380
    Leicestershire
    Clio 197 - Track
    It needs a proper gauge to measure. I have one and will get into the garage within an hour or so.
     
  15. tel4tel

    tel4tel Gold Member

    69
    Farnham
    Golf GTD
    Hi Jordan
    If you can let me know that would be great thanks.
     
  16. sevenfourate

    sevenfourate Devotee of OCD Paid Member

    Lowestoft, England.
    Racing Blue RS-200
    Just made an initial enequiry.

    M20 bolts are available in Zinc plate finish at 220mm long under the head - leaving enough to cut head off and drill / tap as needed.

    They are 8.8 tensile. A 10.8 tensile is available - but only in black / self colour: which will rust.....

    However the shortest threaded portion of the bolt is 65mm if this is an issue.

    Standard M20 bolt is 2.5mm thread rate / pitch for reference.
     
  17. J90RDN

    J90RDN Paid Member

    380
    Leicestershire
    Clio 197 - Track
    I think you are probably right with 2.5mm thread pitch. Just been to garage and my gauge only goes as high as 1.75, and that was way off.
     
  18. tel4tel

    tel4tel Gold Member

    69
    Farnham
    Golf GTD
    65 mm for the bolt thread is fine with me better to have a bit more than less. Can you make the overall length including the 65mm thread 18cm as I'm worried the 21cm bar will poke out of the bumper and I won't be able to get the plastic cover over it(I need to cut a bit of the bottom section out for the strap to fit through)
    The 8.8 Tensile is also fine.
     
  19. Pav

    Pav Moderator

    Manchester
    albi blue 197 with boost
    +1 on this ..thanks
     

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