ACDelco Multi-Purpose Bolt - 11517639 Part #: 11517639 Line: ACD ACDelco Multi-Purpose Bolt 2 Year LIMITED WARRANTY Material: Steel Thread Size: M12-1.75 Length (in): 2-3/8 Inch Length (mm): 44mm Head Size (mm): 15mm Thread Length (in): 1-3/8 Inch Thread Length (mm): 34mm Bolt Grade: Grade 10.9 Color/Finish: Gray Washer Attached: Yes Show More Show Less