t a  e 
REF NO. Part categories Parameter
GM GENUINE : 12556127 Crankshaft Main Bearing Cap Bolt
  • Attached Washer: No ; 
  • Bolt Type: Hex Flange Head ; 
  • Color: Gray ; 
  • Finish: Zinc Coated ; 
  • Grade: 10.9 ; 
  • Head Tool Measurement: 0.512 ; 
  • Head Tool Size (mm): 13 ; 
  • Head Type: Hex ; 
  • Heat Hardened: Yes ; 
  • Length (IN): 0.94 ; 
  • Length (MM): 24 ; 
  • Material: Steel ; 
  • Thread Diameter (IN): 0.315 ; 
  • Thread Diameter (MM): 8 ; 
  • Thread Length (IN): 0.9 ; 
  • Thread Length (MM): 22.9 ; 
  • Thread Type: Medium ; 
  • Threads Per Inch: 20 ; 
  • Zinc Coated: Yes ; 
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