Description
Premium Locking Fasteners. The Mr. Gasket Headlock Locking Header Bolts; M8-1.25x25MM; Set of 12 are designed to securely fasten exhaust headers without the need for additional lock washers. These bolts feature 24 evenly spaced serrated teeth that bite into the surface to prevent loosening, ensuring a reliable and durable connection vital for high-performance engine applications.
Durable Construction and Finish. Crafted from 410 stainless steel, these bolts offer a minimum tensile strength of 180,000 PSI, making them highly resistant to heat and corrosion. The polished finish not only enhances their appearance but also contributes to long-lasting durability under demanding conditions.
Installation Ease. Installation is straightforward and requires no special modifications or drilling. Included with the bolts is a ball head socket tool designed to facilitate easy starting and threading of the bolts into the cylinder head.
Warranty and Application. These header bolts come with a manufacturer’s limited 90-day warranty for added peace of mind. They are specifically compatible with 2007 to 2014 model years of the 6.0L Sierra 2500 HD, ensuring a precise fit for this application.
Mr. Gasket 2235G
CA Residents: WARNING: Cancer and Reproductive Harm
- M8-1.25 X 25mm Size
- Set Of 12 Bolts
- Includes Ball Head Socket Tool To Start Header Bolt Into Head
- 410 Stainless Steel Material
- Minimum 180,000 PSI Tensile Strength
- 24 Equally Spaced Clockwise Teeth Serrations
- Polished Finish
- Eliminates Need For Lock Washers
- Emission Code 5
- Warranty Includes Manufacturer’s Limited 90 Day Coverage
- Fits 07-14 6.0L Sierra 2500 HD






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