HELP PLEASE - I'd like a VAG M12 x 1.75 x 20 hex + captive washers - DO THEY EXIST?

Discussion in 'Tools, Equipment & Fasteners' started by Dave, Nov 19, 2015.

  1. Dave

    Dave *Very Smart* Pedantic Old Fart Paid Member

    Joined:
    Feb 26, 2007
    Likes Received:
    473
    Location:
    Sligo, Eire
    Right folks.

    Pt. Nos. required.

    Below is an image of: N 906 484 02 - M10 x 35 - 1.5 P bolt with captive washer for the MK4 rear shocker top mounts.
    A simply beautiful piece of kit!
    With it is the chrome plated thing that came from Sachs.

    Now I would love to be able to fit a pukka VAG bolt M12 x 1.75 just like the 10mm one below.

    [​IMG]

    I found this M12 x 1.5 bolt, not as beautiful as the M10, in my shed. Must be Mk1, or Mk2, or Audi 90 20V Q or Audi 100?
    Something similar with a 1.75 pitch would be most acceptable!

    [​IMG]

    I was wondering if the dealer's ETKA lets them search for fasteners by size. I'll phone and ask tomorrow.
     
    Last edited: Nov 20, 2015
  2. EZ_Pete

    EZ_Pete Forum Junkie

    Joined:
    Jan 15, 2007
    Likes Received:
    345
    Location:
    Under Bonnet, nr Abingdon
    Must it be a separate, yet captive washer, as opposed to a flanged head?

    I know this chap is way over-long for what you want, and probably quite expensive as a result, but it's the right thread!

    20150504_145509-1.jpg

    That's part number N 10640301 and about 100mm long. Shorter ones with same head must be available, I'd imagine, not sure how to find them though.

    Another pic:

    20150504_145456-1.jpg
     
    Last edited: Nov 19, 2015
    Dave likes this.
  3. Dave

    Dave *Very Smart* Pedantic Old Fart Paid Member

    Joined:
    Feb 26, 2007
    Likes Received:
    473
    Location:
    Sligo, Eire
    Thanks Pete. It's a nice enough head, but I have got my mind set on something identical to the M10 one cos. it is a nigh on a perfect bolt.

    Only the totally engineered stretch bolts, on the left, from the Audi 90 20V Q are better.
    If fact they are the perfect bolt design!

    [​IMG]
     
  4. MUSHY 16V

    MUSHY 16V Moderator Staff Member Moderator

    Joined:
    Jan 26, 2008
    Likes Received:
    800
    Location:
    aberdeen
    I will have a look see what i can for you
     
    Dave likes this.
  5. MUSHY 16V

    MUSHY 16V Moderator Staff Member Moderator

    Joined:
    Jan 26, 2008
    Likes Received:
    800
    Location:
    aberdeen
    try N906 340 01 that's M12x1.5x30 and b140 whatever that means
    says hex head combi bolt
     
    Last edited: Nov 19, 2015
    Dave likes this.
  6. Dave

    Dave *Very Smart* Pedantic Old Fart Paid Member

    Joined:
    Feb 26, 2007
    Likes Received:
    473
    Location:
    Sligo, Eire
    Interesting!!!!!

    It's a bolt used for the camshaft pulley on loads o' VAG cars.

    Early VAGCAT etka images show a standard type bolt with a loose washer.
    But.
    Later ones show just a bolt and no washer.
    And.
    The word 'combi' is used!

    So. I recon. that 'combi' = 'combined washer'?

    It could be most suitable!

    Ta so,
    sSon.
     
    MUSHY 16V likes this.
  7. Dave

    Dave *Very Smart* Pedantic Old Fart Paid Member

    Joined:
    Feb 26, 2007
    Likes Received:
    473
    Location:
    Sligo, Eire
    Feck it's 21.33 hrs.

    Bed time.
     
  8. EZ_Pete

    EZ_Pete Forum Junkie

    Joined:
    Jan 15, 2007
    Likes Received:
    345
    Location:
    Under Bonnet, nr Abingdon
    Sweet dreams Dave. [:D]
     
    MUSHY 16V likes this.
  9. Dave

    Dave *Very Smart* Pedantic Old Fart Paid Member

    Joined:
    Feb 26, 2007
    Likes Received:
    473
    Location:
    Sligo, Eire
    Wish I could have sweet dreams Pete. I am sleeping poorly at the moment, and today is no exception.

    BIG COCK UP

    I awoke at 03.00 hrs and realised that the M12 bolt with captive washer, the second photo in post #1, is the one Justin pointed out:
    N 906 340 01 = M12 x 1.5 P Camshaft Pulley Bolt.
    It's from the PB motor.

    It's an M12 x 1.75 P that I need.
    I have changed post #1 accordingly.


    A few observations:

    1 - N 906 484 02 the M10X35 bolt is 1.5 P which is standard so VAG don't mention it in ETKA references?
    2 - N 906 340 01 is M12X30X1.5 and 1.5 P is a fine non-standard pitch so it is stated in ETKA?
    3 - 'COMBI' = captive washer?
    4 - Structural Bolts: Chassis bolts, bolts for brackets, thin plates, etc., often have a flanged head and are usually coated?
    5 - Mechanical Bolts: Engine bolts, transmission fasteners, etc., often have a plain head and are usually un-coated?
    6 - ETKA is completely inconsistent on how fasteners are described!

    Conclusions:
    Only non-standard pitches are stated in ETKA?
    We need to be looking for 'combi' bolts in chassis?
    It may not be easy due to inconsistencies?

    Good examples on here, especially item #21

    It says 'threaded bush', which is a throwback to Mk1s.
    It is actually a flanged hex nut with washer face M14 x 1.5 P.
    Item #17 is correct, but what the flipping heck does 'AM' mean.
    If you note, at the top of the image, my LH tab is a Google search for VAG Fastener Suffixes.
    Seems I need to search for Prefixes as well.
    The suffix search proved fruitless.

    [​IMG]
     
    Last edited: Nov 20, 2015
  10. rubjonny

    rubjonny Administrator Staff Member Admin

    Joined:
    Oct 31, 2003
    Likes Received:
    3,320
    Location:
    Bracknell
    what do you need it for, I'm guessing the top mounts you have are larger thread than oem? Combi does appear to mean with integrated washer that cannot be removed, 'hex collared bolt' means it has a flanged head. The inconsistency within ETKA may be down to what the bolts were when originally speced, vs what they have subsequently been replaced with. Or just mistakes :lol:

    Assuming that if thread pitch is not specified they mean 1.75 I've found this one so far:
    N 90920501 - bolt hex head, with shoulder, combi, M12x55x38 - 4.25+VAT

    This has shoulder plus washer. 1st measurement seems to be total length, 2nd the length of the actual thread, the rest being unthreaded. I think, looking at the nice pictures that go with :lol: so may not be suitable you only need 20mm ones... I'll keep looking

    Edit: found these without washers, so you would need to add some:
    N 10324402 - hex collar bolt, m12x35 - 2.24+VAT
    N 10690701 - hex collar bolt, m12x50 - 1.94+VAT
    N 10337803 - hex collar bolt, m12x55 - 3.03+VAT
     
    Last edited: Nov 20, 2015
    Dave likes this.
  11. HPR

    HPR Administrator Admin

    Joined:
    Aug 11, 2009
    Likes Received:
    1,819
    There is a section within ETKA that covers `` Norm Teile`` with size and some reference as DIN 6921 or so
     
  12. rubjonny

    rubjonny Administrator Staff Member Admin

    Joined:
    Oct 31, 2003
    Likes Received:
    3,320
    Location:
    Bracknell
    Aye in 7.x in English language its called 'standard hardware' this is where I've been looking. gone cross eyed now scrolling thru lists and lists and yet more lists :lol:
     
  13. sparrow Paid Member Paid Member

    Joined:
    Jan 2, 2006
    Likes Received:
    741
    Location:
    Leamington Spa
    I'm looking for some of these in M8. Thread length anywhere from 65mm to 100mm would be fine. The important bit is the 10.9 and the zinc flake coating.
    Any ideas where to start? I don't have ETKA or anything like that.
     
  14. beetie

    beetie Forum Member

    Joined:
    Dec 1, 2003
    Likes Received:
    228
    Location:
    leicester
    Vagcat is a good etka reference for parts. Just have to sign up.

    I've just bought a load of chassis bolts so if I remember I'll have a sift through them and see if any of them match
     
  15. Dave

    Dave *Very Smart* Pedantic Old Fart Paid Member

    Joined:
    Feb 26, 2007
    Likes Received:
    473
    Location:
    Sligo, Eire
    Ta so sSon. 2 OFF on order.

    They will do fine when modified. I'll post photos and sketch later.
     
  16. Dave

    Dave *Very Smart* Pedantic Old Fart Paid Member

    Joined:
    Feb 26, 2007
    Likes Received:
    473
    Location:
    Sligo, Eire
    I for one know that you did! TPS Belfast. 258? Are you a mate of Derek as well?

    See, someone follows your threads!
     
  17. EZ_Pete

    EZ_Pete Forum Junkie

    Joined:
    Jan 15, 2007
    Likes Received:
    345
    Location:
    Under Bonnet, nr Abingdon
    I find www.partscats.info to be pretty up-to-date, and no need for sign-in, unlike vagcat.
     
    Dave and beetie like this.
  18. beetie

    beetie Forum Member

    Joined:
    Dec 1, 2003
    Likes Received:
    228
    Location:
    leicester
    TPS Leicester for me dave[emoji106]
     
  19. Dave

    Dave *Very Smart* Pedantic Old Fart Paid Member

    Joined:
    Feb 26, 2007
    Likes Received:
    473
    Location:
    Sligo, Eire
    Of course it's Leicester!:thumbup:
    It's my mate Phil who is in Belfast![:s]
    Talk about brain fade! Some of the mistakes that I have made recently are very embarrassing!:(

    This thread is a good example!
     
    Last edited: Nov 20, 2015
  20. Dave

    Dave *Very Smart* Pedantic Old Fart Paid Member

    Joined:
    Feb 26, 2007
    Likes Received:
    473
    Location:
    Sligo, Eire
    Pete.
    That is a great link!:clap:
    I had a quick look earlier and I recon. it might offer better information?:thumbup:
     

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice