Need to know pan nut size for RJC girdle install

[WSLN 6]

I sold my pan nuts with my deep pan and now need replacements for another project. Can anyone confirm the size? I measured a thread pitch of 18mm, but need to know if it is a 7 or 8mm stud.

 

[pacecarta]

pan bolts are standard (not metric) as are all bolts into the block

the stock pan bolts are 5/16 -18
girdle studs are 5/16-18 straight tread
nut would be 5/16- 18

 

[WSLN 6]

Thanks, Jason responded as well. Sweet!