ARP M12 x 1.25 12pt Nut Kit — High-Strength Fastener Hardware

SKU: ARP300-8307
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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.

Watch in action

Precision Engineering for High-Performance Engines

When building a high-performance engine, every component matters. The ARP M12 x 1.25 12pt Nut Kit is designed to provide superior clamping force and reliability compared to standard factory hardware. Manufactured from premium-grade materials, these nuts are engineered to withstand extreme stress and heat cycles without yielding, ensuring your engine components remain securely fastened under the most demanding racing conditions.

Why Choose ARP 12pt Nut Kits?

  • High-Tensile Strength: Crafted for durability in high-horsepower applications.
  • 12-Point Design: Allows for easier access in tight engine bays and higher torque application.
  • Precision Threads: M12 x 1.25 sizing ensures a perfect fit for compatible studs.
  • Corrosion Resistance: Built to last in harsh automotive environments.

Whether you are performing a routine engine refresh or a full-blown racing build, ARP hardware is the industry standard for professionals and enthusiasts alike. The 12-point head design not only looks professional but provides the clearance needed when working with complex manifold or head configurations. Don't risk your engine build with inferior hardware; trust the strength of ARP. Experience the difference in quality and performance when you shop for your automotive hardware needs 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.

Watch in action

Precision Engineering for High-Performance Engines

When building a high-performance engine, every component matters. The ARP M12 x 1.25 12pt Nut Kit is designed to provide superior clamping force and reliability compared to standard factory hardware. Manufactured from premium-grade materials, these nuts are engineered to withstand extreme stress and heat cycles without yielding, ensuring your engine components remain securely fastened under the most demanding racing conditions.

Why Choose ARP 12pt Nut Kits?

  • High-Tensile Strength: Crafted for durability in high-horsepower applications.
  • 12-Point Design: Allows for easier access in tight engine bays and higher torque application.
  • Precision Threads: M12 x 1.25 sizing ensures a perfect fit for compatible studs.
  • Corrosion Resistance: Built to last in harsh automotive environments.

Whether you are performing a routine engine refresh or a full-blown racing build, ARP hardware is the industry standard for professionals and enthusiasts alike. The 12-point head design not only looks professional but provides the clearance needed when working with complex manifold or head configurations. Don't risk your engine build with inferior hardware; trust the strength of ARP. Experience the difference in quality and performance when you shop for your automotive hardware needs 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.

Watch in action

Precision Engineering for High-Performance Engines

When building a high-performance engine, every component matters. The ARP M12 x 1.25 12pt Nut Kit is designed to provide superior clamping force and reliability compared to standard factory hardware. Manufactured from premium-grade materials, these nuts are engineered to withstand extreme stress and heat cycles without yielding, ensuring your engine components remain securely fastened under the most demanding racing conditions.

Why Choose ARP 12pt Nut Kits?

  • High-Tensile Strength: Crafted for durability in high-horsepower applications.
  • 12-Point Design: Allows for easier access in tight engine bays and higher torque application.
  • Precision Threads: M12 x 1.25 sizing ensures a perfect fit for compatible studs.
  • Corrosion Resistance: Built to last in harsh automotive environments.

Whether you are performing a routine engine refresh or a full-blown racing build, ARP hardware is the industry standard for professionals and enthusiasts alike. The 12-point head design not only looks professional but provides the clearance needed when working with complex manifold or head configurations. Don't risk your engine build with inferior hardware; trust the strength of ARP. Experience the difference in quality and performance when you shop for your automotive hardware needs at GGCRACING.

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