For me the studs pictured are not acceptable. You can get chrome ball studs on ebay all day. I went thru MANY studs but the cone stud is not rated and safe for the MB wheel.

If you got cone you use cone if you got ball studs you use ball studs to get a proper fit.

Example I used close nuts on one of my cars and in mid track the whole wheel came off, all nuts stripped out at once and off the wheel went kablooie. If it is not right it is not safe............

It matters, Be safe . WOODY