ARP 12-Point Black Oxide Bolt 1/4-20 x 0.515 — High Performance Fastener

SKU: ARP640-0515
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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.

Professional Grade ARP 12-Point Fasteners

Achieve professional-level security with these ARP 1/4-20 x 0.515 12-point bolts. Designed for builders who demand precision and reliability, these black oxide fasteners offer a sleek, tactical appearance while providing the high-tensile strength necessary for critical engine and chassis components. The 12-point head design allows for higher torque applications without the risk of rounding off, making them a favorite among race teams and custom fabricators.

Why Choose ARP Black Oxide Bolts?

  • 12-Point Design: Allows for easier access in tight spaces and superior torque distribution.
  • Durable Black Oxide Finish: Provides a clean, professional look while resisting wear and tear.
  • High-Tensile Strength: Forged from premium alloys to withstand extreme stress and vibration.
  • Versatile Application: Perfect for mounting brackets, engine accessories, and custom fabrication.
  • Precision Engineering: Exact thread tolerances for a smooth, reliable installation every time.

Choosing the right hardware is essential for the longevity of your vehicle. ARP is synonymous with excellence in the racing industry, and these 1/4-20 bolts are no exception. Whether you are working on a dedicated track car or a high-end street build, these fasteners provide the peace of mind that your components will stay securely in place under the most rigorous conditions. Upgrade your hardware today with the premium selection available 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.

Professional Grade ARP 12-Point Fasteners

Achieve professional-level security with these ARP 1/4-20 x 0.515 12-point bolts. Designed for builders who demand precision and reliability, these black oxide fasteners offer a sleek, tactical appearance while providing the high-tensile strength necessary for critical engine and chassis components. The 12-point head design allows for higher torque applications without the risk of rounding off, making them a favorite among race teams and custom fabricators.

Why Choose ARP Black Oxide Bolts?

  • 12-Point Design: Allows for easier access in tight spaces and superior torque distribution.
  • Durable Black Oxide Finish: Provides a clean, professional look while resisting wear and tear.
  • High-Tensile Strength: Forged from premium alloys to withstand extreme stress and vibration.
  • Versatile Application: Perfect for mounting brackets, engine accessories, and custom fabrication.
  • Precision Engineering: Exact thread tolerances for a smooth, reliable installation every time.

Choosing the right hardware is essential for the longevity of your vehicle. ARP is synonymous with excellence in the racing industry, and these 1/4-20 bolts are no exception. Whether you are working on a dedicated track car or a high-end street build, these fasteners provide the peace of mind that your components will stay securely in place under the most rigorous conditions. Upgrade your hardware today with the premium selection available 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.

Professional Grade ARP 12-Point Fasteners

Achieve professional-level security with these ARP 1/4-20 x 0.515 12-point bolts. Designed for builders who demand precision and reliability, these black oxide fasteners offer a sleek, tactical appearance while providing the high-tensile strength necessary for critical engine and chassis components. The 12-point head design allows for higher torque applications without the risk of rounding off, making them a favorite among race teams and custom fabricators.

Why Choose ARP Black Oxide Bolts?

  • 12-Point Design: Allows for easier access in tight spaces and superior torque distribution.
  • Durable Black Oxide Finish: Provides a clean, professional look while resisting wear and tear.
  • High-Tensile Strength: Forged from premium alloys to withstand extreme stress and vibration.
  • Versatile Application: Perfect for mounting brackets, engine accessories, and custom fabrication.
  • Precision Engineering: Exact thread tolerances for a smooth, reliable installation every time.

Choosing the right hardware is essential for the longevity of your vehicle. ARP is synonymous with excellence in the racing industry, and these 1/4-20 bolts are no exception. Whether you are working on a dedicated track car or a high-end street build, these fasteners provide the peace of mind that your components will stay securely in place under the most rigorous conditions. Upgrade your hardware today with the premium selection available at GGCRACING.

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