what is the size of a 240sx wheel stud?

[240coupe]

I need to know the size of a 240sx wheel stud so i can re drill a 300Zx rotor to 4 lug…

Anyone know?

[S13GG]

the same size as the holes already in the rotor for 5-lug.

[conky]

m12 X 1.25

[sr20]

1/2 inch… make a bit oversize like 0.525 or something