GM Service Manual Online
For 1990-2009 cars only

Metric Wheel Nuts and Bolts Description for Chevrolet Alero Export 1999

All models use metric wheels nuts and wheel studs. The nut will have the word metric stamped on the face. The stud will have the letter M stamped into the threaded end and the word metric stamped on the head.

The thread size of the metric wheels nuts and wheel studs are M12x1.5:

    • M = Metric
    • 12 = Diameter in millimeters
    • 1.5 = Millimeters per thread

If a broken stud is found, refer to Front Suspension or to Rear Suspension for the replacement procedure.