ARP 1/2 Inch-20 12pt Nut (Single) — High-Strength Engine Fastener

SKU: ARP300-8304
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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 ARP 1/2-20 12pt Nut

When you need a single high-strength replacement, the ARP 1/2-20 12pt Nut is the gold standard in engine fastener technology. Designed to provide exceptional clamping force, this nut is perfect for critical engine applications where reliability is paramount. Its 12-point design allows for higher torque values compared to standard hex nuts, while also providing better clearance in cramped engine bays.

Features of ARP 12pt Fasteners

  • Superior Clamping: Designed to withstand extreme stress and vibration without loosening.
  • High-Quality Alloy: Crafted from premium materials for maximum fatigue resistance.
  • Precision Threads: Rolled threads ensure smooth, accurate tightening for consistent pre-load.
  • Versatile Application: Ideal for custom builds, head studs, or as a high-performance replacement part.

Every component in your engine plays a vital role, and fasteners are the unsung heroes of performance. By choosing ARP, you are selecting a brand synonymous with racing success and engine longevity. This 1/2-20 12pt nut is built to meet the rigorous demands of high-performance driving, ensuring that your engine components remain secure under the most intense conditions. Don't settle for standard hardware when you can have the strength and reliability of ARP. Ensure your engine is built to last with high-performance components 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.

Watch in action

Precision ARP 1/2-20 12pt Nut

When you need a single high-strength replacement, the ARP 1/2-20 12pt Nut is the gold standard in engine fastener technology. Designed to provide exceptional clamping force, this nut is perfect for critical engine applications where reliability is paramount. Its 12-point design allows for higher torque values compared to standard hex nuts, while also providing better clearance in cramped engine bays.

Features of ARP 12pt Fasteners

  • Superior Clamping: Designed to withstand extreme stress and vibration without loosening.
  • High-Quality Alloy: Crafted from premium materials for maximum fatigue resistance.
  • Precision Threads: Rolled threads ensure smooth, accurate tightening for consistent pre-load.
  • Versatile Application: Ideal for custom builds, head studs, or as a high-performance replacement part.

Every component in your engine plays a vital role, and fasteners are the unsung heroes of performance. By choosing ARP, you are selecting a brand synonymous with racing success and engine longevity. This 1/2-20 12pt nut is built to meet the rigorous demands of high-performance driving, ensuring that your engine components remain secure under the most intense conditions. Don't settle for standard hardware when you can have the strength and reliability of ARP. Ensure your engine is built to last with high-performance components 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.

Watch in action

Precision ARP 1/2-20 12pt Nut

When you need a single high-strength replacement, the ARP 1/2-20 12pt Nut is the gold standard in engine fastener technology. Designed to provide exceptional clamping force, this nut is perfect for critical engine applications where reliability is paramount. Its 12-point design allows for higher torque values compared to standard hex nuts, while also providing better clearance in cramped engine bays.

Features of ARP 12pt Fasteners

  • Superior Clamping: Designed to withstand extreme stress and vibration without loosening.
  • High-Quality Alloy: Crafted from premium materials for maximum fatigue resistance.
  • Precision Threads: Rolled threads ensure smooth, accurate tightening for consistent pre-load.
  • Versatile Application: Ideal for custom builds, head studs, or as a high-performance replacement part.

Every component in your engine plays a vital role, and fasteners are the unsung heroes of performance. By choosing ARP, you are selecting a brand synonymous with racing success and engine longevity. This 1/2-20 12pt nut is built to meet the rigorous demands of high-performance driving, ensuring that your engine components remain secure under the most intense conditions. Don't settle for standard hardware when you can have the strength and reliability of ARP. Ensure your engine is built to last with high-performance components from GGCRACING.

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