ACDelco Multi-Purpose Bolt - 11513737 Part #: 11513737 Line: ACD ACDelco Multi-Purpose Bolt 1 Year Limited Warranty Material: Steel Thread Size: 5/16 Inch Thread Type: Medium Length (in): 1-3/8 Inch Length (mm): 35mm Head Type: Cap Bolt, Hex Head Size (in): 1/2 Inch Head Size (mm): 13mm Thread Diameter (in): 5/16 Inch Thread Diameter (mm): 8mm Bolt Grade: Grade 10.9 Color/Finish: Phosphate-Coated Heat Treated: Yes Show More Show Less