Mr. Gasket Header Bolt Set

3/8-16 x 3/4" - 12 per Package, Grade-5, Hex Head, 7/16" Wrench Size.

PART# 915

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"When installing headers, your factory exhaust bolts will not work to attach the headers back to the motor. Our header bolt are designed for quick and easy installation. These are high quality bolts that are proven performers. These bolts look good on all applications and they have a black oxide coating that resists rust.


  • Has A Black Oxide Coating
  • Made Of High Quality Grade 8 Steel
  • Has A Hex Head With Flange
  • Designed For Minimal Clearance Applications
  • 12 per Package
  • Grade-5
  • Hex Head w/ 7/16" Wrench Size


BrandMr. Gasket
Emission Code5
FinishBlack Oxide
Head StyleHex
Product TypeHeader Bolts
WarrantyLimited 1 Year Warranty
Wrench Size7/16"
Part Number915


This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Warranty Information

Limited 1 Year Warranty: See Details
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        *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

        Some parts are not legal for use in California or other states with similar regulations.