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Wedge-Locking Header Bolts; Hex Head; M8 X 1.181in; Chevy LS; Nickel Plt; 12 Pcs - 66755

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MSRP: $39.92
$31.95
(You save $7.97 )
Part Number
BCHW-66755
UPC:
037995667550
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Each PROFORM Grade 8 Header Bolt is permanently assembled with a pair of special washers. When the bolt is torqued to 28+ ft-lbs, the washers super-hardened external teeth bite into and grip the bottom of the bolt head and the top surface of the header. After being self-locked in this manner, any bolt-loosening rotation is blocked by a wedge-locking action created by the washers interfacing, matching cams. Its an uphill climb: vibration that might ordinarily loosen the bolt actually increases the wedge-locking tension, securing the bolt even more. Because this simple wedge-locking method uses tension instead of friction, contact with oil actually facilitates the wedge effect. When changing headers, PROFORM Header Bolts can be untightened with a normal wrench, lubricated, and reused.

Additional Attributes:

  • GTIN: 00037995667550
  • Applications: Fits GM LS Engines with 3/8-inch Wide Flange
  • Color: Nickel Plated
  • Diameter: 8mm
  • Feature/Benefit: Wedge-Locking Technology Eliminates Constantly Re-Tightening Exhaust Collector Bolts; Blocks Bolt-Loosening Rotation caused by Vehicle Vibrations.
  • Finish: Nickel Plated
  • Length: 1.181 inch
  • Material: Steel
  • Part Type: Header Bolts

Extened Information:

  • Emissions : CARB Eligible
  • Life Cycle Status:

Packaging:

  • Quantity of Each: 1
  • Package UOM: EA
  • Dimension: 6.75 x 4.5 x 1.75 inches




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