Strut pinch bolt Nut

RUM4MO

Active Member
Jun 4, 2008
8,084
1,108
South Scotland
Ah, now you have discovered something new, namely VAG do not always use "standard" ISO METRIC thread pitches - I discovered that the first time I took the front suspension apart, I overcame most problems by buying a "big" tap and die set to clean up bolts and threads. When you look into this deeper there are metric "fine" and metric "coarse" and more even truncated threads for greater strength!
 

Damoegan

Sir Bob,a geordy legend..
Oct 15, 2007
8,993
3
Newcastle
Yup, Metric (as do imperial threads too) come in fine, standard and coarse threads.

On cars you dont 'normaly' see anything under M8 as anything other than standard threads.
 

RUM4MO

Active Member
Jun 4, 2008
8,084
1,108
South Scotland
Yup, Metric (as do imperial threads too) come in fine, standard and coarse threads.

On cars you dont 'normaly' see anything under M8 as anything other than standard threads.

Oh I think that I also bumped into some M6s that were not the thread pitch that I had assumed them to be - that is what happens when you only normally use "standard" or "prefered" thread pitches - ie if its M4, M5, M6, M8, M10, M12 then you "know" what the thread pitch is - ie what places like RS supply is okay - but not it seems with cars - well not with VAG anyway!
 

techathy

^^ my name, my thought >>
Jul 9, 2009
115
0
Cambridge
The Panda is the same way, you find some non-standard threads about but they're alway threads I see at work. Thing is I've never seen M14x1.25, M14x1.5 & M14x1.0 sure but no M14x1.25. Also it seems a backwards step from the old M12x1.5 that VW have used in the past.
 

Damoegan

Sir Bob,a geordy legend..
Oct 15, 2007
8,993
3
Newcastle
Oh I think that I also bumped into some M6s that were not the thread pitch that I had assumed them to be - that is what happens when you only normally use "standard" or "prefered" thread pitches - ie if its M4, M5, M6, M8, M10, M12 then you "know" what the thread pitch is - ie what places like RS supply is okay - but not it seems with cars - well not with VAG anyway!

RS do fine, standard and coarse threads too ;)