whats the thread pitch on the oil return fitting

SON240sx Automotive
1

http://img300.imageshack.us/img300/2074/returnzt4.jpg

i need the thread pitch so i can order my an fittings

2

last resort, take out the fitting and measure it.

or buy a thread pitch tool from C Tire.

3

3/4" BSPT

4

thank you sir

5

Bring back an old thread. Can anyone please confirm this for me. I have also seen 1/2 bspt as the thread. Is this for all sr20 blocks? I would like to replace my return with AN lines.