I'm having what's probably a basic issue. I have two large, heavy frames weighing in around 10-12 pounds each that I need to hang.

The hanging hardware is 24" apart on the frames.

I found the studs on my wall, they're 12 inches apart, each roughly 3 inches wide, meaning the center is 15 inches apart. This means I can hang each picture on one stud, but not on two.

Any suggestions on how I can hang these safely? They aren't wire hangs, they are D ring shaped.