ACDelco Multi-Purpose Bolt - 11610911 Part #: 11610911 Line: ACD ACDelco Multi-Purpose Bolt 1 Year Limited Warranty Material: Steel Thread Size: M12-1.75 Head Type: Hex Flanged Head Size (mm): 18mm Thread Diameter (in): 1/2 Inch Thread Length (in): 3-1/16 Inch Thread Length (mm): 78mm Thread Diameter (mm): 12mm Bolt Grade: Grade 10.9 SAE Or Metric: Metric Color/Finish: Zinc-Plated Show More Show Less