A length of coat hanger wire bent to the width of the two holes worked fine for me.
Note the hard drive connector attaches to the outermost connector on the logic board. On my Mini it attached to the inner connector.
The cable I got in the Dual Drive kit was exactly the same as the one installed in my Mini. I had to fold it to shift it over to snap on the outer connector.
And, no, my hard drive wasn't where the picture shows it to be.
Here's where it started going south on me because the two T8 screws aren't really attached to anything because my hard drive is on the top of the case where the DVD drive used to be.