Nutsert part number 51 71 8 175 003

I might have a subframe there with them already fitted. Cant check until Thursday im away at a wedding. Or i can post up some weld nuts their a far better job if you have someone to weld them. Riv nuts can loosen and wear.

http://www.bmwhaus.ie/vbulletin/showthread.php?p=57949