Auto Racing Products 12-Point Chromoly Bolt Kit — 3/8-24 x 1.000 Universal Fitment

SKU: BQDN_742-1000
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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.

Watch in action

Precision 1-Inch 12-Point Fasteners

When you need a reliable 1-inch bolt for your high-performance engine build, look no further than these Auto Racing Products 3/8-24 x 1.000 fasteners. These bolts are crafted from high-strength chromoly steel, offering superior durability and clamping force compared to standard factory hardware. The 12-point head design allows for precise torque application, ensuring that your engine components stay securely fastened under the most intense racing conditions.

Key Technical Details

  • Thread Size: 3/8-24
  • Under-Head Length: 1.000 inch
  • Head Style: 3/8-inch 12-Point
  • Material: Heat-Treated Chromoly
  • Finish: Black Oxide
  • Quantity: Set of 5

The black oxide finish provides a clean, professional aesthetic while protecting against rust and wear, making these bolts ideal for both race cars and high-performance street vehicles. The 12-point head is particularly beneficial for applications where tool clearance is limited, allowing for easier maintenance and assembly. Whether you are working on a custom engine project or replacing worn-out hardware, these bolts provide the strength and reliability required for peak performance. Find all your essential engine hardware and more 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

Precision 1-Inch 12-Point Fasteners

When you need a reliable 1-inch bolt for your high-performance engine build, look no further than these Auto Racing Products 3/8-24 x 1.000 fasteners. These bolts are crafted from high-strength chromoly steel, offering superior durability and clamping force compared to standard factory hardware. The 12-point head design allows for precise torque application, ensuring that your engine components stay securely fastened under the most intense racing conditions.

Key Technical Details

  • Thread Size: 3/8-24
  • Under-Head Length: 1.000 inch
  • Head Style: 3/8-inch 12-Point
  • Material: Heat-Treated Chromoly
  • Finish: Black Oxide
  • Quantity: Set of 5

The black oxide finish provides a clean, professional aesthetic while protecting against rust and wear, making these bolts ideal for both race cars and high-performance street vehicles. The 12-point head is particularly beneficial for applications where tool clearance is limited, allowing for easier maintenance and assembly. Whether you are working on a custom engine project or replacing worn-out hardware, these bolts provide the strength and reliability required for peak performance. Find all your essential engine hardware and more 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

Precision 1-Inch 12-Point Fasteners

When you need a reliable 1-inch bolt for your high-performance engine build, look no further than these Auto Racing Products 3/8-24 x 1.000 fasteners. These bolts are crafted from high-strength chromoly steel, offering superior durability and clamping force compared to standard factory hardware. The 12-point head design allows for precise torque application, ensuring that your engine components stay securely fastened under the most intense racing conditions.

Key Technical Details

  • Thread Size: 3/8-24
  • Under-Head Length: 1.000 inch
  • Head Style: 3/8-inch 12-Point
  • Material: Heat-Treated Chromoly
  • Finish: Black Oxide
  • Quantity: Set of 5

The black oxide finish provides a clean, professional aesthetic while protecting against rust and wear, making these bolts ideal for both race cars and high-performance street vehicles. The 12-point head is particularly beneficial for applications where tool clearance is limited, allowing for easier maintenance and assembly. Whether you are working on a custom engine project or replacing worn-out hardware, these bolts provide the strength and reliability required for peak performance. Find all your essential engine hardware and more at GGCRACING.

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