Auto Racing Products 12-Point Chromoly Bolt Kit 8mm x 1.25 x 30mm — Universal Heavy-Duty Fasteners

SKU: BQDN_671-1003
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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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Ultimate Reliability: ARP 8mm x 1.25 x 30mm 12-Point Chromoly Bolt Kit

For critical connections that demand extended reach and uncompromising strength, the Auto Racing Products (ARP) 8mm x 1.25 x 30mm 12-Point Chromoly Bolt Kit is engineered to excel. These heavy-duty fasteners are indispensable for high-stress applications in performance vehicles, racing machines, and custom fabrication projects. Forged from premium chromoly steel, celebrated for its exceptional tensile strength and superior fatigue resistance, these bolts ensure that your assemblies remain steadfast under the most extreme loads, vibrations, and thermal cycles. The robust black oxide finish not only provides a sleek, professional aesthetic but also delivers vital protection against corrosion and wear, guaranteeing long-term integrity and performance.

Superior Features for Demanding Use:

  • Extreme Duty Chromoly: Constructed from high-grade chromoly steel, offering unmatched strength and resilience against stretching or fracturing under severe stress.
  • Optimized 12-Point Head: The 10mm 12-point head design allows for precise torque application and easier access in challenging, confined spaces, enhancing installation efficiency.
  • Advanced Corrosion Protection: Features a durable black oxide coating that effectively guards against rust and environmental degradation, ensuring prolonged reliability.
  • Extended Length Design: With an 8mm x 1.25 thread and 30mm length, these bolts are perfectly suited for applications requiring a longer reach while maintaining maximum strength.
  • Universal Heavy-Duty Application: An ideal choice for critical fastening points in engine builds, drivetrain components, suspension systems, and custom projects where robust connections are paramount.

Technical Specifications:

  • Bolt Thread: 8mm x 1.25
  • Bolt Length: 30mm
  • Head Type: 12-Point
  • Head Size: 10mm
  • Material: Chromoly Steel
  • Finish: Black Oxide
  • Quantity: Set of 5 Bolts
  • Part Number: 671-1003

Universal Fitment for Critical Systems

These ARP chromoly bolts are universally applicable, making them a cornerstone for any high-performance build or repair. Their extended length and robust construction are perfect for securing components that require a deeper engagement or pass through thicker materials, providing a secure and reliable connection that can withstand the rigors of competitive racing and extreme driving conditions.

The Proven Choice for Performance

Auto Racing Products is synonymous with excellence in automotive fasteners, and this 12-point chromoly bolt kit embodies that legacy. Designed and manufactured to stringent standards, these bolts offer the ultimate in strength, durability, and peace of mind for your most critical connections. Trust in ARP to deliver the performance and reliability your vehicle deserves, available 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

Ultimate Reliability: ARP 8mm x 1.25 x 30mm 12-Point Chromoly Bolt Kit

For critical connections that demand extended reach and uncompromising strength, the Auto Racing Products (ARP) 8mm x 1.25 x 30mm 12-Point Chromoly Bolt Kit is engineered to excel. These heavy-duty fasteners are indispensable for high-stress applications in performance vehicles, racing machines, and custom fabrication projects. Forged from premium chromoly steel, celebrated for its exceptional tensile strength and superior fatigue resistance, these bolts ensure that your assemblies remain steadfast under the most extreme loads, vibrations, and thermal cycles. The robust black oxide finish not only provides a sleek, professional aesthetic but also delivers vital protection against corrosion and wear, guaranteeing long-term integrity and performance.

Superior Features for Demanding Use:

  • Extreme Duty Chromoly: Constructed from high-grade chromoly steel, offering unmatched strength and resilience against stretching or fracturing under severe stress.
  • Optimized 12-Point Head: The 10mm 12-point head design allows for precise torque application and easier access in challenging, confined spaces, enhancing installation efficiency.
  • Advanced Corrosion Protection: Features a durable black oxide coating that effectively guards against rust and environmental degradation, ensuring prolonged reliability.
  • Extended Length Design: With an 8mm x 1.25 thread and 30mm length, these bolts are perfectly suited for applications requiring a longer reach while maintaining maximum strength.
  • Universal Heavy-Duty Application: An ideal choice for critical fastening points in engine builds, drivetrain components, suspension systems, and custom projects where robust connections are paramount.

Technical Specifications:

  • Bolt Thread: 8mm x 1.25
  • Bolt Length: 30mm
  • Head Type: 12-Point
  • Head Size: 10mm
  • Material: Chromoly Steel
  • Finish: Black Oxide
  • Quantity: Set of 5 Bolts
  • Part Number: 671-1003

Universal Fitment for Critical Systems

These ARP chromoly bolts are universally applicable, making them a cornerstone for any high-performance build or repair. Their extended length and robust construction are perfect for securing components that require a deeper engagement or pass through thicker materials, providing a secure and reliable connection that can withstand the rigors of competitive racing and extreme driving conditions.

The Proven Choice for Performance

Auto Racing Products is synonymous with excellence in automotive fasteners, and this 12-point chromoly bolt kit embodies that legacy. Designed and manufactured to stringent standards, these bolts offer the ultimate in strength, durability, and peace of mind for your most critical connections. Trust in ARP to deliver the performance and reliability your vehicle deserves, available 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

Ultimate Reliability: ARP 8mm x 1.25 x 30mm 12-Point Chromoly Bolt Kit

For critical connections that demand extended reach and uncompromising strength, the Auto Racing Products (ARP) 8mm x 1.25 x 30mm 12-Point Chromoly Bolt Kit is engineered to excel. These heavy-duty fasteners are indispensable for high-stress applications in performance vehicles, racing machines, and custom fabrication projects. Forged from premium chromoly steel, celebrated for its exceptional tensile strength and superior fatigue resistance, these bolts ensure that your assemblies remain steadfast under the most extreme loads, vibrations, and thermal cycles. The robust black oxide finish not only provides a sleek, professional aesthetic but also delivers vital protection against corrosion and wear, guaranteeing long-term integrity and performance.

Superior Features for Demanding Use:

  • Extreme Duty Chromoly: Constructed from high-grade chromoly steel, offering unmatched strength and resilience against stretching or fracturing under severe stress.
  • Optimized 12-Point Head: The 10mm 12-point head design allows for precise torque application and easier access in challenging, confined spaces, enhancing installation efficiency.
  • Advanced Corrosion Protection: Features a durable black oxide coating that effectively guards against rust and environmental degradation, ensuring prolonged reliability.
  • Extended Length Design: With an 8mm x 1.25 thread and 30mm length, these bolts are perfectly suited for applications requiring a longer reach while maintaining maximum strength.
  • Universal Heavy-Duty Application: An ideal choice for critical fastening points in engine builds, drivetrain components, suspension systems, and custom projects where robust connections are paramount.

Technical Specifications:

  • Bolt Thread: 8mm x 1.25
  • Bolt Length: 30mm
  • Head Type: 12-Point
  • Head Size: 10mm
  • Material: Chromoly Steel
  • Finish: Black Oxide
  • Quantity: Set of 5 Bolts
  • Part Number: 671-1003

Universal Fitment for Critical Systems

These ARP chromoly bolts are universally applicable, making them a cornerstone for any high-performance build or repair. Their extended length and robust construction are perfect for securing components that require a deeper engagement or pass through thicker materials, providing a secure and reliable connection that can withstand the rigors of competitive racing and extreme driving conditions.

The Proven Choice for Performance

Auto Racing Products is synonymous with excellence in automotive fasteners, and this 12-point chromoly bolt kit embodies that legacy. Designed and manufactured to stringent standards, these bolts offer the ultimate in strength, durability, and peace of mind for your most critical connections. Trust in ARP to deliver the performance and reliability your vehicle deserves, available at GGCRACING.

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