This part is listed by BMW as BMW part number 7119904101 (07 11 9 904 101) and is described as Genuine BMW Fillister-Head Screw.
You will find these unique fillister head screws on the rear sway bar setup of the 2001-2006 E46 M3 and 2005-2008 E85 Z4 M, as well as the timing / VANOS setup on the S85 V10 engine used in both the 2006-2010 E60 M5 and the 2006-2010 E63/E64 M6.
Sold individually. Be sure to order enough for your application. On rear sway bar bushing bolts, you'll want 4 to do the job, while on the S85 V10 timing gear there's just one of these.
This screw is also used in a host of other BMW Euro models, for various purposes, but in the USA it's limited to these M car applications.
For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648.
BMW Fitments:
3 Series
E46 (99-05) > M3
5 Series
E60 / E61 (04-10) > M5
6 Series
E63 / E64 (04-10) > M6
Z Series
E85 / E86 Z4 (03-08) > Z4 M