Compare Maximum number of 4 items selected ACDelco M13-2.0 Thread Hex Head Bolt - 55490324 Part #: 55490324 Line: ACD ACDelco M13-2.0 Thread Hex Head Bolt 1 Year Limited Warranty Head Size (in): 1-1/4 Inch Head Size (mm): 15mm Head Type: Hex Thread Size: M13-2.0 Material: Steel Washer Included: No Color/Finish: Zinc Phosphate Show More Show Less