t a  e 
REF NO. Part categories Parameter
GM GENUINE : 11589120 Valve Cover Bolt
  • Attached Washer: No
  • Bolt Type: Hex
  • Grade: 8.8
  • Head Tool Measurement: 10
  • Head Type: Hex
  • Heat Hardened: No
  • Length (IN): 1.171
  • Length (MM): 29.75
  • Material: Steel
  • S.A.E. Or Metric: Metric
  • Thread Diameter (MM): 6
  • Thread Length (IN): 1.063
  • Thread Length (MM): 27
  • Thread Pitch (IN): 1
GM GENUINE : 12557829 Valve Cover Bolt
  • Attached Washer: No
  • Bolt Type: Acorn Bolt
  • Head Type: Hex
  • Length (IN): 1.58
  • Length (MM): 40.2
  • Material: Steel
  • S.A.E. Or Metric: Metric
  • Thread Diameter (IN): 0.236
  • Thread Diameter (MM): 6
  • Thread Length (IN): 1.25
  • Thread Length (MM): 32
  • Thread Pitch (IN): 1
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    Size/Parameters

    Annotated Parameter name Size range Unit