Bleeder Bolt Size?

[untypical]

Does anyone know the bolt size for the upper radiator hose bleeder bolt, mine is in bad shape and I either will need an oem bolt or a same sized replacement, help please

Here is the part number as well

06036308aa

 

[Xterra4x4]

Does anyone know the bolt size for the upper radiator hose bleeder bolt, mine is in bad shape and I either will need an oem bolt or a same sized replacement, help please

Here is the part number as well

06036308aa

10 MM size

 

[Xterra4x4]

10 mm allen head