Auto Racing Products 12-Point Chromoly Bolt Kit — 3/8-24 x 1.500 Universal Fitment

SKU: BQDN_742-1500
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About Auto Racing Products ARP (Automotive Racing Products) makes the ...Read More

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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.

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High-Strength 12-Point Fasteners for Professional Builds

When you are pushing your engine to the limit, every component matters. These Auto Racing Products 12-point bolts are engineered for high-performance applications where reliability is non-negotiable. Manufactured from premium chromoly steel and finished with a durable black oxide coating, these fasteners provide superior tensile strength compared to standard hardware.

Technical Specifications

  • Thread Size: 3/8-24
  • Under-Head Length: 1.500 inches
  • Head Style: 12-Point
  • Material: High-Tensile Chromoly
  • Finish: Corrosion-Resistant Black Oxide
  • Quantity: Set of 5

The 12-point head design allows for higher torque values and easier access in tight engine bays, making them the preferred choice for professional engine builders and weekend racers alike. Whether you are securing intake manifolds, headers, or custom brackets, these bolts deliver the clamping force required to withstand extreme vibration and thermal cycling. Their universal design ensures compatibility across a wide range of custom automotive projects. Trust your build to the industry-leading quality found 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.

Watch in action

High-Strength 12-Point Fasteners for Professional Builds

When you are pushing your engine to the limit, every component matters. These Auto Racing Products 12-point bolts are engineered for high-performance applications where reliability is non-negotiable. Manufactured from premium chromoly steel and finished with a durable black oxide coating, these fasteners provide superior tensile strength compared to standard hardware.

Technical Specifications

  • Thread Size: 3/8-24
  • Under-Head Length: 1.500 inches
  • Head Style: 12-Point
  • Material: High-Tensile Chromoly
  • Finish: Corrosion-Resistant Black Oxide
  • Quantity: Set of 5

The 12-point head design allows for higher torque values and easier access in tight engine bays, making them the preferred choice for professional engine builders and weekend racers alike. Whether you are securing intake manifolds, headers, or custom brackets, these bolts deliver the clamping force required to withstand extreme vibration and thermal cycling. Their universal design ensures compatibility across a wide range of custom automotive projects. Trust your build to the industry-leading quality found 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.

Watch in action

High-Strength 12-Point Fasteners for Professional Builds

When you are pushing your engine to the limit, every component matters. These Auto Racing Products 12-point bolts are engineered for high-performance applications where reliability is non-negotiable. Manufactured from premium chromoly steel and finished with a durable black oxide coating, these fasteners provide superior tensile strength compared to standard hardware.

Technical Specifications

  • Thread Size: 3/8-24
  • Under-Head Length: 1.500 inches
  • Head Style: 12-Point
  • Material: High-Tensile Chromoly
  • Finish: Corrosion-Resistant Black Oxide
  • Quantity: Set of 5

The 12-point head design allows for higher torque values and easier access in tight engine bays, making them the preferred choice for professional engine builders and weekend racers alike. Whether you are securing intake manifolds, headers, or custom brackets, these bolts deliver the clamping force required to withstand extreme vibration and thermal cycling. Their universal design ensures compatibility across a wide range of custom automotive projects. Trust your build to the industry-leading quality found at GGCRACING.

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