Auto Racing Products Header Bolt Kit 6-Point 3/8 x 1.00 UHL — Universal Exhaust Fasteners (Set of 12)

SKU: BQDN_100-1109
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Auto Racing Products

ARP (Automotive Racing Products) makes the strongest fasteners in motorsport — head studs, main studs, rod bolts, and flexplate bolts used by every Formula 1, NHRA, NASCAR, and championship motorsport program. Aerospace-grade alloys, exact-fit machining.

High-Performance Exhaust Header Bolts

Ensure your exhaust system remains secure under extreme heat and vibration with the Auto Racing Products 3/8 x 1.00 Header Bolt Kit. Designed for builders who demand reliability, these 6-point fasteners provide superior clamping force compared to standard hardware. Whether you are running a street machine or a dedicated track car, these bolts prevent leaks and gasket failure caused by thermal expansion.

Technical Specifications

  • Thread Size: 3/8-16
  • Under Head Length (UHL): 1.00 inch
  • Head Style: 6-Point Hex
  • Material: Premium Chromoly Steel
  • Finish: Corrosion-Resistant Black Oxide
  • Quantity: 12-Piece Set

Constructed from high-tensile chromoly steel, these bolts are engineered to withstand the intense thermal cycling of high-performance engines. The black oxide finish offers excellent rust protection while maintaining a clean, professional aesthetic in your engine bay. These universal-fit bolts are ideal for custom header installations where precise length and high-grade material are non-negotiable. By replacing your factory hardware with these professional-grade fasteners, you eliminate the risk of loose headers and exhaust leaks that sap power and efficiency. Trust your build to the industry leader in fastener technology and experience the difference in structural integrity. Find all your essential engine hardware and performance components at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Auto Racing Products

ARP (Automotive Racing Products) makes the strongest fasteners in motorsport — head studs, main studs, rod bolts, and flexplate bolts used by every Formula 1, NHRA, NASCAR, and championship motorsport program. Aerospace-grade alloys, exact-fit machining.

High-Performance Exhaust Header Bolts

Ensure your exhaust system remains secure under extreme heat and vibration with the Auto Racing Products 3/8 x 1.00 Header Bolt Kit. Designed for builders who demand reliability, these 6-point fasteners provide superior clamping force compared to standard hardware. Whether you are running a street machine or a dedicated track car, these bolts prevent leaks and gasket failure caused by thermal expansion.

Technical Specifications

  • Thread Size: 3/8-16
  • Under Head Length (UHL): 1.00 inch
  • Head Style: 6-Point Hex
  • Material: Premium Chromoly Steel
  • Finish: Corrosion-Resistant Black Oxide
  • Quantity: 12-Piece Set

Constructed from high-tensile chromoly steel, these bolts are engineered to withstand the intense thermal cycling of high-performance engines. The black oxide finish offers excellent rust protection while maintaining a clean, professional aesthetic in your engine bay. These universal-fit bolts are ideal for custom header installations where precise length and high-grade material are non-negotiable. By replacing your factory hardware with these professional-grade fasteners, you eliminate the risk of loose headers and exhaust leaks that sap power and efficiency. Trust your build to the industry leader in fastener technology and experience the difference in structural integrity. Find all your essential engine hardware and performance components at GGCRACING.

Product Details

Product Description

About Auto Racing Products

ARP (Automotive Racing Products) makes the strongest fasteners in motorsport — head studs, main studs, rod bolts, and flexplate bolts used by every Formula 1, NHRA, NASCAR, and championship motorsport program. Aerospace-grade alloys, exact-fit machining.

High-Performance Exhaust Header Bolts

Ensure your exhaust system remains secure under extreme heat and vibration with the Auto Racing Products 3/8 x 1.00 Header Bolt Kit. Designed for builders who demand reliability, these 6-point fasteners provide superior clamping force compared to standard hardware. Whether you are running a street machine or a dedicated track car, these bolts prevent leaks and gasket failure caused by thermal expansion.

Technical Specifications

  • Thread Size: 3/8-16
  • Under Head Length (UHL): 1.00 inch
  • Head Style: 6-Point Hex
  • Material: Premium Chromoly Steel
  • Finish: Corrosion-Resistant Black Oxide
  • Quantity: 12-Piece Set

Constructed from high-tensile chromoly steel, these bolts are engineered to withstand the intense thermal cycling of high-performance engines. The black oxide finish offers excellent rust protection while maintaining a clean, professional aesthetic in your engine bay. These universal-fit bolts are ideal for custom header installations where precise length and high-grade material are non-negotiable. By replacing your factory hardware with these professional-grade fasteners, you eliminate the risk of loose headers and exhaust leaks that sap power and efficiency. Trust your build to the industry leader in fastener technology and experience the difference in structural integrity. Find all your essential engine hardware and performance components at GGCRACING.

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