Wheels Studs

So guys,
what is the right size of stud for my 67 dart with 10" drums all round?

ive found these 2 sizes listed on Laysons:

7/16"- 20X 1-1/2 with.472" knurl diameter
and
7/16"- 20 x 1-7/16 with .555" knurl diameter

It says they are both for front but nothing listed for rear.

Thanks
Nick