Monster/Monster+ Stahlbus Bleed Valve For M600

Hi folks,

I have an old 600 Monster with the hydraulic bleed nipple on the top of the clutch housing. It's a pain to bleed, so thinking about buying a Stahlbus valve.



Can anyone tell me what the thread diameter and depth is, please? Pretty sure it's an M10, but can't be sure.

Thanks in advance!

Nik