There's no mention of a retaining screw hole either on DBA 2128E.
I forgot to mention my 15.8mm stud hole discs were factory Ford and Ford supplied.
FYI:
15.8
https://www.empoweredautoparts.com.a...front-disc-bra
or 13.8:
https://www.empoweredautoparts.com.a...front-disc-bra
So I wonder why there is a choice.