Screw studs get loose, and the pronged, belt-style studs tear off eventually, they both have pros and cons. Try sewing a d-ring on to the coat , or even just sewing a loop of fabric around the chain and to the coat, the put a stud in that? It's not too hard to sew it flat enough.
Through lifeless eyes I can still see
The bombers flying over
Bombing the path to peace
Who condones this bloodlust?