1968-1982 Corvette SB Wedge Locking Header Bolts - Black - 3/4in Lx3/8in W - 12 Bolts - CA

Restore and customize your Corvette with this part! Engineered to Meet or Exceed OEM Specifications.

• Each 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. It's 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, these Header Bolts can be untightened with a normal wrench, lubricated, and reused.
• Corvette Is A Registered Trademark Of The General Motors Corporation.
• We are unable to accept returns on any exhaust system or component that shows evidence of being installed. Installation marks, scratches, or any alteration observed on the product will render it ineligible for a return, credit, or refund. Please carefully inspect and consider your exhaust system choice before installation to ensure it meets your needs and expectations.

• 12 Bolts