Front end hex bolt and lock nut thread size questions
 

Is part number N0403211 "Porsche Hexagon-head bolt m 10x65" fine thread or coarse thread? i.e. is it M10x 1.25mm x 65mm or M10 x 1.5mm x 65mm? I did the search but it does not show whether these are fine or coarse threaded bolts. For instance, part number 900.082.039.02 is Porsche Hexagon-head bolt m 12x1.5x100. This clearly means that the thread is fine thread because of the 12x1.5. Coarse thread in M12 is usually 1.75.

** Should I assume that N.040.321.1 would be fine thread and order bolts that are M10x1.25x65?

** Also, I have the same question for N0104456 "Porsche Hxhd screw 10x45". Is it M10x1.25x45 or M10x1.5x45?

** 900.075.079.02 Porsche Hexagon-head bolt m 8x22 -- Is this 1.0 or 1.25?

** N90087601 Porsche Nut -- are these 1.0 or 1.25 or 1.5?

** 900.910.022.09 Porsche Lock nut m8 -- are these 1.0 or 1.25?


Thank you.

anyone got any ideas?

standad M10 is 10x1.5. fine is 10x1.25. If it only says M10 and does not specifiy 1.25 I'm almost positive it's standard 1.5.
I recently looked up the rear control arm mount bolts, they are mentioned in PET as M10. I measured one ith a thread gauge to be sure and it was standard 1.5.
So I assume that unless it is otherwise specified, standard metric thread windings apply. (I know, assumption is the mother of all fck ups)

And on that note, I ordered all available thread sizes in bolts where a size wasn't specified. I will update this thread with the correct thread size once I have received the bolts.

I ordered these in class 10.9 from bolt depot.