Availability

- In Stock Items. Ships Today. (3) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- In Stock Items, Including at a Supplier. Ships In a Few Days. (3) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- All Items, Including Not In Stock (4) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Filters
Make/Model
Make/Engine
Thread Size
- 3/8 in.-16 (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- M8 x 1.25 (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Underhead Length (in.)
- 0.750 (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 1.000 (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Underhead Length (mm)
- 19.00mm (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 25.00mm (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Quantity
Price Range
- $20-$50 (3)
- $50-$100 (1)
Savings Central
- On Sale (3)

Mr. Gasket HEADLOCK Locking Header Bolts

4.62 out of 5 stars 50 Customer Reviews

Burning your hands on headers or the exhaust manifold when bolting them on just became a thing of the past. Mr. Gasket HEADLOCK locking header bolts simplify header

Burning your hands on headers or the exhaust manifold when bolting them on just became a thing of the past. Mr. Gasket HEADLOCK locking header bolts simplify header installation with high-strength, 2-in-1 self-locking bolts that eliminate the need for lock washers. Designed for the performance engine builder, these innovative, patent-pending fasteners have 24 equally spaced serrations in the face of the hex head. The bolts grab and lock on to your manifold surface, virtually eliminating the chance that one might back out from vibration or because of the varying expansion rates of different metals. Mr. Gasket HEADLOCK locking header bolts are available for numerous domestic applications, including Chevrolet, Chrysler, Ford, AMC, Oldsmobile, and Pontiac. They're manufactured from stainless steel, designed to withstand tensile strengths of 150,000 pounds per square inch, and come with a bright polished finish.