I do not see that the option exists to "Drill from Opposite Side" on hardware, but it would be very helpful for us if it did.  Since it is on other machine tokens, is it possible to add it to the hardware ones?

Since this option doesn't exist, we are having to compensate by adding several hardware parts that have slightly different machining tokens on them. 

I am using the 1st approach listed below currently, and I couldn't think of anything better as a work-around.  For formulated machine tokens to work, they would need to know the thickness of the panel the hardware array is attaching to and the thickness of the associative panel (both found at the sub/nested sub level).  I have never had luck referencing things inside of a sub in a hardware token in the past.  Maybe this works more consistently now?