ARP M8 x 1.25 x 16mm 12pt Stainless Steel Bolt Kit — Universal Automotive Hardware

SKU: ARP771-1017
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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.

Premium ARP Stainless Steel Hardware

When building a high-performance engine, hardware reliability is non-negotiable. These ARP M8 x 1.25 x 16mm 12pt stainless steel bolts provide superior clamping force and exceptional resistance to corrosion compared to standard factory fasteners. Designed for enthusiasts who demand longevity and a clean, polished look under the hood, these bolts are perfect for various automotive fabrication and engine assembly tasks.

Technical Specifications

  • Thread Size: M8 x 1.25
  • Under-Head Length: 16mm
  • Head Style: 12-Point
  • Material: High-Grade Stainless Steel
  • Quantity: 5 Bolts per Package

The 12-point head design allows for higher torque values and easier access in tight engine bay configurations, making them a favorite among professional engine builders. Whether you are securing brackets, accessories, or custom components, these bolts offer the peace of mind that your hardware will hold up under extreme heat and vibration. Each set is manufactured to ARP's legendary standards, ensuring consistent thread pitch and structural integrity for every application. Upgrade your vehicle's hardware today with high-performance solutions from 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.

Premium ARP Stainless Steel Hardware

When building a high-performance engine, hardware reliability is non-negotiable. These ARP M8 x 1.25 x 16mm 12pt stainless steel bolts provide superior clamping force and exceptional resistance to corrosion compared to standard factory fasteners. Designed for enthusiasts who demand longevity and a clean, polished look under the hood, these bolts are perfect for various automotive fabrication and engine assembly tasks.

Technical Specifications

  • Thread Size: M8 x 1.25
  • Under-Head Length: 16mm
  • Head Style: 12-Point
  • Material: High-Grade Stainless Steel
  • Quantity: 5 Bolts per Package

The 12-point head design allows for higher torque values and easier access in tight engine bay configurations, making them a favorite among professional engine builders. Whether you are securing brackets, accessories, or custom components, these bolts offer the peace of mind that your hardware will hold up under extreme heat and vibration. Each set is manufactured to ARP's legendary standards, ensuring consistent thread pitch and structural integrity for every application. Upgrade your vehicle's hardware today with high-performance solutions from 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.

Premium ARP Stainless Steel Hardware

When building a high-performance engine, hardware reliability is non-negotiable. These ARP M8 x 1.25 x 16mm 12pt stainless steel bolts provide superior clamping force and exceptional resistance to corrosion compared to standard factory fasteners. Designed for enthusiasts who demand longevity and a clean, polished look under the hood, these bolts are perfect for various automotive fabrication and engine assembly tasks.

Technical Specifications

  • Thread Size: M8 x 1.25
  • Under-Head Length: 16mm
  • Head Style: 12-Point
  • Material: High-Grade Stainless Steel
  • Quantity: 5 Bolts per Package

The 12-point head design allows for higher torque values and easier access in tight engine bay configurations, making them a favorite among professional engine builders. Whether you are securing brackets, accessories, or custom components, these bolts offer the peace of mind that your hardware will hold up under extreme heat and vibration. Each set is manufactured to ARP's legendary standards, ensuring consistent thread pitch and structural integrity for every application. Upgrade your vehicle's hardware today with high-performance solutions from GGCRACING.

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