Mk2.5 Seat bolt thread

Can anyone tell me what the thread is on the seat bolts? Appears to be M10, but an M10 nut won’t fit, so I presume the pitch is different (I want to put spacers in to improve driving position, so will need longer bolts).

TIA

From memory it’s M10 x 1.25.

It’s definitely metric fine, which is why a standard M10 nut wouldn’t fit, it would have a pitch of 1.5mm.

If you have a M8 bolt handy you can check the thread pitch against it as it will have a 1.25mm pitch.

Cheers mate - absolutely right M10 x 1.25 and 15mm length should anyone need that in future.

Will order longer replacements today

 

Many thanks

No problem, glad I could help.