WP bottom nut missing!!!

[Barlow]

anyone know the exact size and thread pitch of the bottom water pump nut that goes on the stud. Mine backed off and is missing so i gotta know exact thread pitch to get it replaced

 

[Vrabel]

M8x1.50 I believe

 

[lotsofmiles]

i hate it when my bottom nut backs off and i cant be found.

 

[Vrabel]

i hate it when my bottom nut backs off and i cant be found.

Personally, I don't keep any nuts in my bottom.