Repairing Thread
Drill out defective hole in bumper (2) to 9.5 mm diameter.
Insert blind rivet nut (1)*.
Secure number/license plate (3) with number/license plate screw (4)*.
Tightening torque, see 51 11 4AZ in 51 11 FRONT BUMPER .
NOTE:
*Sourcing reference: BMW Parts Service