Auto Racing Products 12-Point Chromoly Bolt Kit — 8mm x 1.25 x 75mm Universal Fasteners

SKU: BQDN_671-1012
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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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Reliable Strength for Custom Builds

When your project requires longer, high-strength fasteners, the Auto Racing Products 12-point bolt kit is the ideal solution. These 8mm x 1.25 x 75mm bolts are engineered to provide maximum clamping force for critical engine components. Made from heat-treated chromoly steel, these bolts offer exceptional resistance to stretching, ensuring your gaskets and parts remain perfectly sealed even under high-boost or high-RPM conditions.

Product Highlights

  • Thread Pitch: 8mm x 1.25
  • Under-Head Length: 75mm
  • Head Configuration: 10mm 12-Point
  • Material: High-Tensile Chromoly
  • Finish: Durable Black Oxide
  • Set Size: 5 Bolts

The 12-point head design is a hallmark of professional racing hardware, providing superior torque capabilities and easier access in confined engine bays. This design allows for a more secure fit, reducing the chance of socket slippage and ensuring consistent tension across all fasteners. The black oxide finish provides a sleek, uniform look that complements any engine bay while offering essential corrosion resistance.

These bolts are perfect for custom brackets, long-reach applications, or any area where standard-length hardware isn't sufficient. By upgrading to these premium fasteners, you are choosing reliability and performance over standard factory alternatives. Whether you are a weekend warrior or a professional engine builder, these bolts provide the security your engine deserves. Discover the difference that quality hardware makes in your next build by shopping the extensive collection 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

Reliable Strength for Custom Builds

When your project requires longer, high-strength fasteners, the Auto Racing Products 12-point bolt kit is the ideal solution. These 8mm x 1.25 x 75mm bolts are engineered to provide maximum clamping force for critical engine components. Made from heat-treated chromoly steel, these bolts offer exceptional resistance to stretching, ensuring your gaskets and parts remain perfectly sealed even under high-boost or high-RPM conditions.

Product Highlights

  • Thread Pitch: 8mm x 1.25
  • Under-Head Length: 75mm
  • Head Configuration: 10mm 12-Point
  • Material: High-Tensile Chromoly
  • Finish: Durable Black Oxide
  • Set Size: 5 Bolts

The 12-point head design is a hallmark of professional racing hardware, providing superior torque capabilities and easier access in confined engine bays. This design allows for a more secure fit, reducing the chance of socket slippage and ensuring consistent tension across all fasteners. The black oxide finish provides a sleek, uniform look that complements any engine bay while offering essential corrosion resistance.

These bolts are perfect for custom brackets, long-reach applications, or any area where standard-length hardware isn't sufficient. By upgrading to these premium fasteners, you are choosing reliability and performance over standard factory alternatives. Whether you are a weekend warrior or a professional engine builder, these bolts provide the security your engine deserves. Discover the difference that quality hardware makes in your next build by shopping the extensive collection 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

Reliable Strength for Custom Builds

When your project requires longer, high-strength fasteners, the Auto Racing Products 12-point bolt kit is the ideal solution. These 8mm x 1.25 x 75mm bolts are engineered to provide maximum clamping force for critical engine components. Made from heat-treated chromoly steel, these bolts offer exceptional resistance to stretching, ensuring your gaskets and parts remain perfectly sealed even under high-boost or high-RPM conditions.

Product Highlights

  • Thread Pitch: 8mm x 1.25
  • Under-Head Length: 75mm
  • Head Configuration: 10mm 12-Point
  • Material: High-Tensile Chromoly
  • Finish: Durable Black Oxide
  • Set Size: 5 Bolts

The 12-point head design is a hallmark of professional racing hardware, providing superior torque capabilities and easier access in confined engine bays. This design allows for a more secure fit, reducing the chance of socket slippage and ensuring consistent tension across all fasteners. The black oxide finish provides a sleek, uniform look that complements any engine bay while offering essential corrosion resistance.

These bolts are perfect for custom brackets, long-reach applications, or any area where standard-length hardware isn't sufficient. By upgrading to these premium fasteners, you are choosing reliability and performance over standard factory alternatives. Whether you are a weekend warrior or a professional engine builder, these bolts provide the security your engine deserves. Discover the difference that quality hardware makes in your next build by shopping the extensive collection at GGCRACING.

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