Auto Racing Products 12-Point Chromoly Bolt Kit — 8mm x 1.25 x 45mm Universal Fasteners

SKU: BQDN_671-1006
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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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Precision Engineered Chromoly Hardware

Upgrade your vehicle's hardware with the Auto Racing Products 12-point bolt kit. Designed for demanding automotive applications, these 8mm x 1.25 x 45mm bolts provide the strength and durability required for high-performance builds. Crafted from high-tensile chromoly steel, these fasteners are built to withstand intense vibration and thermal cycling without stretching or failing.

Key Features and Specs

  • Thread Pitch: 8mm x 1.25
  • Length: 45mm
  • Head Design: 10mm 12-Point
  • Material: Heat-Treated Chromoly
  • Coating: Black Oxide Finish
  • Package: Set of 5

The 12-point head configuration is a favorite among professional engine builders, offering increased surface area for socket engagement, which minimizes the risk of rounding off heads during high-torque tightening. This makes them ideal for frequently serviced components or areas with limited clearance. The black oxide coating ensures a sleek, stealthy look while offering essential protection against rust and corrosion.

Whether you are replacing worn-out factory bolts or assembling a custom performance setup, these bolts deliver the clamping force needed to maintain engine integrity. Their universal 8mm sizing makes them a versatile addition to any mechanic's toolbox. Experience the peace of mind that comes with using premium-grade fasteners designed for the track and the street. Enhance your engine's reliability with high-quality components from 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 Engineered Chromoly Hardware

Upgrade your vehicle's hardware with the Auto Racing Products 12-point bolt kit. Designed for demanding automotive applications, these 8mm x 1.25 x 45mm bolts provide the strength and durability required for high-performance builds. Crafted from high-tensile chromoly steel, these fasteners are built to withstand intense vibration and thermal cycling without stretching or failing.

Key Features and Specs

  • Thread Pitch: 8mm x 1.25
  • Length: 45mm
  • Head Design: 10mm 12-Point
  • Material: Heat-Treated Chromoly
  • Coating: Black Oxide Finish
  • Package: Set of 5

The 12-point head configuration is a favorite among professional engine builders, offering increased surface area for socket engagement, which minimizes the risk of rounding off heads during high-torque tightening. This makes them ideal for frequently serviced components or areas with limited clearance. The black oxide coating ensures a sleek, stealthy look while offering essential protection against rust and corrosion.

Whether you are replacing worn-out factory bolts or assembling a custom performance setup, these bolts deliver the clamping force needed to maintain engine integrity. Their universal 8mm sizing makes them a versatile addition to any mechanic's toolbox. Experience the peace of mind that comes with using premium-grade fasteners designed for the track and the street. Enhance your engine's reliability with high-quality components from 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 Engineered Chromoly Hardware

Upgrade your vehicle's hardware with the Auto Racing Products 12-point bolt kit. Designed for demanding automotive applications, these 8mm x 1.25 x 45mm bolts provide the strength and durability required for high-performance builds. Crafted from high-tensile chromoly steel, these fasteners are built to withstand intense vibration and thermal cycling without stretching or failing.

Key Features and Specs

  • Thread Pitch: 8mm x 1.25
  • Length: 45mm
  • Head Design: 10mm 12-Point
  • Material: Heat-Treated Chromoly
  • Coating: Black Oxide Finish
  • Package: Set of 5

The 12-point head configuration is a favorite among professional engine builders, offering increased surface area for socket engagement, which minimizes the risk of rounding off heads during high-torque tightening. This makes them ideal for frequently serviced components or areas with limited clearance. The black oxide coating ensures a sleek, stealthy look while offering essential protection against rust and corrosion.

Whether you are replacing worn-out factory bolts or assembling a custom performance setup, these bolts deliver the clamping force needed to maintain engine integrity. Their universal 8mm sizing makes them a versatile addition to any mechanic's toolbox. Experience the peace of mind that comes with using premium-grade fasteners designed for the track and the street. Enhance your engine's reliability with high-quality components from GGCRACING.

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