ARP M8 x 1.25 x 12mm Black Oxide Hex Bolts — Universal Automotive Hardware

SKU: ARP661-1016
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About ARP ARP (Automotive Racing Products) makes the strongest fasteners ...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 ARP

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 ARP M8 x 1.25 x 12mm Hex Bolts

Small fasteners often face the most scrutiny in an engine build. These ARP M8 x 1.25 x 12mm Black Oxide Hex Bolts are built to the same exacting standards as the rest of the ARP lineup, ensuring that even your shortest bolts provide maximum holding power. Ideal for tight spaces, mounting small brackets, or securing trim pieces, these bolts offer a significant upgrade over standard hardware.

Key Advantages

  • Compact Design: 12mm length is perfect for low-profile mounting requirements.
  • High-Grade Steel: Heat-treated for superior resistance to shearing and vibration.
  • Black Oxide Finish: Sleek, low-profile look with added corrosion protection.
  • Trusted Quality: ARP is the gold standard in automotive performance hardware.

Using high-quality bolts is essential for maintaining the integrity of your engine components. These 12mm bolts are designed to fit perfectly with an M8 x 1.25 thread pitch, ensuring a smooth installation process. Whether you are finishing up a custom intake setup or securing a sensor bracket, these bolts provide the peace of mind that comes with using professional-grade parts. The black oxide finish ensures they remain looking great even after exposure to the harsh conditions of the engine bay. Don't settle for cheap, unreliable fasteners that could fail under pressure. Choose ARP for your next project and experience the difference that quality makes. Find all the hardware you need for your build at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About ARP

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 ARP M8 x 1.25 x 12mm Hex Bolts

Small fasteners often face the most scrutiny in an engine build. These ARP M8 x 1.25 x 12mm Black Oxide Hex Bolts are built to the same exacting standards as the rest of the ARP lineup, ensuring that even your shortest bolts provide maximum holding power. Ideal for tight spaces, mounting small brackets, or securing trim pieces, these bolts offer a significant upgrade over standard hardware.

Key Advantages

  • Compact Design: 12mm length is perfect for low-profile mounting requirements.
  • High-Grade Steel: Heat-treated for superior resistance to shearing and vibration.
  • Black Oxide Finish: Sleek, low-profile look with added corrosion protection.
  • Trusted Quality: ARP is the gold standard in automotive performance hardware.

Using high-quality bolts is essential for maintaining the integrity of your engine components. These 12mm bolts are designed to fit perfectly with an M8 x 1.25 thread pitch, ensuring a smooth installation process. Whether you are finishing up a custom intake setup or securing a sensor bracket, these bolts provide the peace of mind that comes with using professional-grade parts. The black oxide finish ensures they remain looking great even after exposure to the harsh conditions of the engine bay. Don't settle for cheap, unreliable fasteners that could fail under pressure. Choose ARP for your next project and experience the difference that quality makes. Find all the hardware you need for your build at GGCRACING.

Product Details

Product Description

About ARP

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 ARP M8 x 1.25 x 12mm Hex Bolts

Small fasteners often face the most scrutiny in an engine build. These ARP M8 x 1.25 x 12mm Black Oxide Hex Bolts are built to the same exacting standards as the rest of the ARP lineup, ensuring that even your shortest bolts provide maximum holding power. Ideal for tight spaces, mounting small brackets, or securing trim pieces, these bolts offer a significant upgrade over standard hardware.

Key Advantages

  • Compact Design: 12mm length is perfect for low-profile mounting requirements.
  • High-Grade Steel: Heat-treated for superior resistance to shearing and vibration.
  • Black Oxide Finish: Sleek, low-profile look with added corrosion protection.
  • Trusted Quality: ARP is the gold standard in automotive performance hardware.

Using high-quality bolts is essential for maintaining the integrity of your engine components. These 12mm bolts are designed to fit perfectly with an M8 x 1.25 thread pitch, ensuring a smooth installation process. Whether you are finishing up a custom intake setup or securing a sensor bracket, these bolts provide the peace of mind that comes with using professional-grade parts. The black oxide finish ensures they remain looking great even after exposure to the harsh conditions of the engine bay. Don't settle for cheap, unreliable fasteners that could fail under pressure. Choose ARP for your next project and experience the difference that quality makes. Find all the hardware you need for your build at GGCRACING.

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