Originally Posted by StephenVA

Reuse the bolts for the bracket to hub. Replace the pins that hold the caliper to the bracket. Replace the caliper mounting boot as well. Reinstall the new pins DRY.

Note: At 100K I personally replace all bolts, boots, lines, rebuild the calipers etc at the brakes. The replacement bolts use a male TORX head, so you will in the future need a FEMALE Torx socket. The ability to torque and unbolt is improved moving forward at the socket self centers on twist.

?????
We are discussing #3 on Image below I looked up the costs from a local dealer.
Hex bolt M12X1,5X41 ZNS3 4 11/2005 34116767217
The cost is
Disc Brake Caliper Bracket Mounting Bolt - BMW (34-11-6-767-217)

MSRP: $17.98
Discount: $3.59 (20% off)
Sale Price: $14.39

I think to OP clicked on the assembly part (Bracket, bolts,etc) number #2