Auto Racing Products 12pt Chromoly Bolt Kit 8mm x 1.25 x 25mm — Universal High-Strength Fasteners

SKU: BQDN_671-1002
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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.

Precision 12-Point Racing Hardware

The Auto Racing Products 8mm x 1.25 x 25mm 12-point bolt kit is engineered for builders who demand both space efficiency and maximum clamping force. The 12-point head design is a hallmark of professional racing, allowing for easier access in cramped engine compartments while providing a larger surface area for your socket to grip securely.

Technical Details

  • Thread Pitch: 8mm x 1.25
  • Bolt Length: 25mm
  • Head Style: 10mm 12-Point
  • Material: Heat-Treated Chromoly
  • Finish: Black Oxide
  • Set Size: 5 Bolts

Constructed from heat-treated chromoly steel, these bolts are built to withstand the rigors of high-performance driving. The 25mm length makes them versatile for various automotive applications, from securing accessory brackets to engine dress-up components. The black oxide finish provides a clean, professional appearance that resists corrosion, ensuring your engine bay looks as good as it performs. Whether you are a weekend warrior or a track-day enthusiast, upgrading to these 12-point bolts is a simple way to increase the reliability of your vehicle. Discover the difference quality hardware makes with the selection 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.

Precision 12-Point Racing Hardware

The Auto Racing Products 8mm x 1.25 x 25mm 12-point bolt kit is engineered for builders who demand both space efficiency and maximum clamping force. The 12-point head design is a hallmark of professional racing, allowing for easier access in cramped engine compartments while providing a larger surface area for your socket to grip securely.

Technical Details

  • Thread Pitch: 8mm x 1.25
  • Bolt Length: 25mm
  • Head Style: 10mm 12-Point
  • Material: Heat-Treated Chromoly
  • Finish: Black Oxide
  • Set Size: 5 Bolts

Constructed from heat-treated chromoly steel, these bolts are built to withstand the rigors of high-performance driving. The 25mm length makes them versatile for various automotive applications, from securing accessory brackets to engine dress-up components. The black oxide finish provides a clean, professional appearance that resists corrosion, ensuring your engine bay looks as good as it performs. Whether you are a weekend warrior or a track-day enthusiast, upgrading to these 12-point bolts is a simple way to increase the reliability of your vehicle. Discover the difference quality hardware makes with the selection 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.

Precision 12-Point Racing Hardware

The Auto Racing Products 8mm x 1.25 x 25mm 12-point bolt kit is engineered for builders who demand both space efficiency and maximum clamping force. The 12-point head design is a hallmark of professional racing, allowing for easier access in cramped engine compartments while providing a larger surface area for your socket to grip securely.

Technical Details

  • Thread Pitch: 8mm x 1.25
  • Bolt Length: 25mm
  • Head Style: 10mm 12-Point
  • Material: Heat-Treated Chromoly
  • Finish: Black Oxide
  • Set Size: 5 Bolts

Constructed from heat-treated chromoly steel, these bolts are built to withstand the rigors of high-performance driving. The 25mm length makes them versatile for various automotive applications, from securing accessory brackets to engine dress-up components. The black oxide finish provides a clean, professional appearance that resists corrosion, ensuring your engine bay looks as good as it performs. Whether you are a weekend warrior or a track-day enthusiast, upgrading to these 12-point bolts is a simple way to increase the reliability of your vehicle. Discover the difference quality hardware makes with the selection available at GGCRACING.

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