ADV crashbar question

[Deadskin]

Does anybody know how long the bolt is that fixes the top tube
on the right hand side (as your sitting on bike)
This tube

 

[Professional Boxer]

front mounting to frame is m8x25
rear mounting by telelever pivot is m8x30

so 25 & 30mm respectivley

 

[Deadskin]

front mounting to frame is m8x25
rear mounting by telelever pivot is m8x30

so 25 & 30mm respectivley

Cheers Pro Boxer
but a m8x 40 was original so it must be longer.
Cheers
mark