Auto Racing Products 12-Point Chromoly Bolt Kit — 8mm x 1.25 x 55mm Universal Fasteners

SKU: BQDN_671-1008
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About Auto Racing Products ARP (Automotive Racing Products) makes the ...Read More

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Sale price$25.99
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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

Professional-Grade Engine Fasteners

Ensure your engine components stay secure under the most demanding conditions with the Auto Racing Products 12-point bolt kit. These 8mm x 1.25 x 55mm fasteners are manufactured from high-strength chromoly steel, providing significantly higher yield strength than standard hardware store bolts. Perfect for high-performance engines, these bolts are designed to handle the rigors of racing and high-output street driving.

Technical Specifications

  • Thread: 8mm x 1.25
  • Length: 55mm
  • Head: 10mm 12-Point
  • Material: Chromoly Steel
  • Finish: Black Oxide
  • Quantity: 5-Pack

The 12-point head design offers a distinct advantage in tight spaces, allowing for better socket access and higher torque application without the risk of slipping. This is critical when working on intake manifolds, timing covers, or other engine accessories where space is at a premium. The black oxide finish not only provides a professional, high-end appearance but also adds a layer of protection against the elements, ensuring your bolts look as good as they perform.

By choosing Auto Racing Products, you are investing in hardware that has been tested and proven in the most competitive motorsport environments. These bolts are essential for anyone serious about engine reliability and performance. Don't settle for inferior hardware that could compromise your build. Upgrade to professional-grade fasteners and keep your engine running strong. Find these and other premium automotive parts 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

Professional-Grade Engine Fasteners

Ensure your engine components stay secure under the most demanding conditions with the Auto Racing Products 12-point bolt kit. These 8mm x 1.25 x 55mm fasteners are manufactured from high-strength chromoly steel, providing significantly higher yield strength than standard hardware store bolts. Perfect for high-performance engines, these bolts are designed to handle the rigors of racing and high-output street driving.

Technical Specifications

  • Thread: 8mm x 1.25
  • Length: 55mm
  • Head: 10mm 12-Point
  • Material: Chromoly Steel
  • Finish: Black Oxide
  • Quantity: 5-Pack

The 12-point head design offers a distinct advantage in tight spaces, allowing for better socket access and higher torque application without the risk of slipping. This is critical when working on intake manifolds, timing covers, or other engine accessories where space is at a premium. The black oxide finish not only provides a professional, high-end appearance but also adds a layer of protection against the elements, ensuring your bolts look as good as they perform.

By choosing Auto Racing Products, you are investing in hardware that has been tested and proven in the most competitive motorsport environments. These bolts are essential for anyone serious about engine reliability and performance. Don't settle for inferior hardware that could compromise your build. Upgrade to professional-grade fasteners and keep your engine running strong. Find these and other premium automotive parts 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

Professional-Grade Engine Fasteners

Ensure your engine components stay secure under the most demanding conditions with the Auto Racing Products 12-point bolt kit. These 8mm x 1.25 x 55mm fasteners are manufactured from high-strength chromoly steel, providing significantly higher yield strength than standard hardware store bolts. Perfect for high-performance engines, these bolts are designed to handle the rigors of racing and high-output street driving.

Technical Specifications

  • Thread: 8mm x 1.25
  • Length: 55mm
  • Head: 10mm 12-Point
  • Material: Chromoly Steel
  • Finish: Black Oxide
  • Quantity: 5-Pack

The 12-point head design offers a distinct advantage in tight spaces, allowing for better socket access and higher torque application without the risk of slipping. This is critical when working on intake manifolds, timing covers, or other engine accessories where space is at a premium. The black oxide finish not only provides a professional, high-end appearance but also adds a layer of protection against the elements, ensuring your bolts look as good as they perform.

By choosing Auto Racing Products, you are investing in hardware that has been tested and proven in the most competitive motorsport environments. These bolts are essential for anyone serious about engine reliability and performance. Don't settle for inferior hardware that could compromise your build. Upgrade to professional-grade fasteners and keep your engine running strong. Find these and other premium automotive parts at GGCRACING.

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