This part is listed by BMW as BMW part number 33326768354 (33 32 6 768 354) and is described as M10x33mm Hex Screw with Collar for many BMW models. This hex bolt is often used for chassis reinforcements and braces (often called a compression strut or push rod in BMW diagrams). It may be used in other applications as well. It's a single-use bolt (torque-to-yield) as the factory torque spec requires an additional partial turn which stretches the bolt.
This is a Genuine BMW chassis reinforcement bolt with a two year warranty. Buying a Genuine part will usually be more expensive than an OEM or aftermarket brand but you are assured that it meets BMW's designs for fitment, performance, and longevity. It will also be the very latest design, incorporating any updates or revisions that an aftermarket brand typically will ignore.
For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648.