Auto Racing Products 1/4-20 x 1.250 Chromoly 12-Point Black Oxide Bolts - Set of 5

SKU: BQDN_640-1250
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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 Auto Racing Products

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.

Maximum Security with ARP 1/4-20 x 1.250 Chromoly 12-Point Bolts

For those critical applications demanding an extended reach without compromising on strength, the Auto Racing Products (ARP) 1/4-20 x 1.250 12-point bolts deliver unparalleled performance. Expertly forged from premium chromoly steel, these fasteners are engineered to provide exceptional resistance to shear forces and dynamic loads, making them indispensable for securing vital components in the most demanding automotive and racing environments. The precision-machined 12-point head design ensures superior wrench engagement, allowing for precise and higher torque values, which translates to a more secure and reliable assembly. Each bolt is finished with a durable black oxide coating, offering robust protection against corrosion and wear, while maintaining a low-profile, professional appearance that integrates seamlessly into any high-performance setup.

Engineered for Extreme Conditions:

  • Ultimate Strength: Manufactured from high-tensile chromoly steel, providing superior resistance to stretching and fatigue under extreme operating conditions.
  • Optimized Torque Application: The 12-point head design facilitates enhanced wrench grip, allowing for maximum clamping force and preventing fastener distortion.
  • Long-Lasting Protection: Black oxide treatment creates a resilient barrier against rust, oxidation, and chemical exposure, ensuring extended hardware life.
  • Precision Craftsmanship: Adheres to ARP's stringent quality standards, guaranteeing consistent thread accuracy and reliable performance for every bolt.
  • Versatile Extended Reach: Ideal for applications requiring a 1.25-inch length, offering robust fastening solutions across various performance platforms.

Detailed Product Specifications:

  • Thread Size: 1/4-20 inches
  • Length: 1.250 inches
  • Head Style: 5/16 inch 12-Point
  • Material: Chromoly Steel
  • Finish: Black Oxide
  • Quantity: Set of 5 Bolts
  • Part Number: ARP 640-1250

When your build demands the absolute best, trust ARP to deliver. These 1/4-20 x 1.250 chromoly bolts are not just components; they are a critical investment in the longevity and safety of your high-performance vehicle. Experience the unwavering confidence that comes from using ARP's industry-leading fasteners. Discover your next level of performance and security at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Auto Racing Products

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.

Maximum Security with ARP 1/4-20 x 1.250 Chromoly 12-Point Bolts

For those critical applications demanding an extended reach without compromising on strength, the Auto Racing Products (ARP) 1/4-20 x 1.250 12-point bolts deliver unparalleled performance. Expertly forged from premium chromoly steel, these fasteners are engineered to provide exceptional resistance to shear forces and dynamic loads, making them indispensable for securing vital components in the most demanding automotive and racing environments. The precision-machined 12-point head design ensures superior wrench engagement, allowing for precise and higher torque values, which translates to a more secure and reliable assembly. Each bolt is finished with a durable black oxide coating, offering robust protection against corrosion and wear, while maintaining a low-profile, professional appearance that integrates seamlessly into any high-performance setup.

Engineered for Extreme Conditions:

  • Ultimate Strength: Manufactured from high-tensile chromoly steel, providing superior resistance to stretching and fatigue under extreme operating conditions.
  • Optimized Torque Application: The 12-point head design facilitates enhanced wrench grip, allowing for maximum clamping force and preventing fastener distortion.
  • Long-Lasting Protection: Black oxide treatment creates a resilient barrier against rust, oxidation, and chemical exposure, ensuring extended hardware life.
  • Precision Craftsmanship: Adheres to ARP's stringent quality standards, guaranteeing consistent thread accuracy and reliable performance for every bolt.
  • Versatile Extended Reach: Ideal for applications requiring a 1.25-inch length, offering robust fastening solutions across various performance platforms.

Detailed Product Specifications:

  • Thread Size: 1/4-20 inches
  • Length: 1.250 inches
  • Head Style: 5/16 inch 12-Point
  • Material: Chromoly Steel
  • Finish: Black Oxide
  • Quantity: Set of 5 Bolts
  • Part Number: ARP 640-1250

When your build demands the absolute best, trust ARP to deliver. These 1/4-20 x 1.250 chromoly bolts are not just components; they are a critical investment in the longevity and safety of your high-performance vehicle. Experience the unwavering confidence that comes from using ARP's industry-leading fasteners. Discover your next level of performance and security at GGCRACING.

Product Details

Product Description

About Auto Racing Products

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.

Maximum Security with ARP 1/4-20 x 1.250 Chromoly 12-Point Bolts

For those critical applications demanding an extended reach without compromising on strength, the Auto Racing Products (ARP) 1/4-20 x 1.250 12-point bolts deliver unparalleled performance. Expertly forged from premium chromoly steel, these fasteners are engineered to provide exceptional resistance to shear forces and dynamic loads, making them indispensable for securing vital components in the most demanding automotive and racing environments. The precision-machined 12-point head design ensures superior wrench engagement, allowing for precise and higher torque values, which translates to a more secure and reliable assembly. Each bolt is finished with a durable black oxide coating, offering robust protection against corrosion and wear, while maintaining a low-profile, professional appearance that integrates seamlessly into any high-performance setup.

Engineered for Extreme Conditions:

  • Ultimate Strength: Manufactured from high-tensile chromoly steel, providing superior resistance to stretching and fatigue under extreme operating conditions.
  • Optimized Torque Application: The 12-point head design facilitates enhanced wrench grip, allowing for maximum clamping force and preventing fastener distortion.
  • Long-Lasting Protection: Black oxide treatment creates a resilient barrier against rust, oxidation, and chemical exposure, ensuring extended hardware life.
  • Precision Craftsmanship: Adheres to ARP's stringent quality standards, guaranteeing consistent thread accuracy and reliable performance for every bolt.
  • Versatile Extended Reach: Ideal for applications requiring a 1.25-inch length, offering robust fastening solutions across various performance platforms.

Detailed Product Specifications:

  • Thread Size: 1/4-20 inches
  • Length: 1.250 inches
  • Head Style: 5/16 inch 12-Point
  • Material: Chromoly Steel
  • Finish: Black Oxide
  • Quantity: Set of 5 Bolts
  • Part Number: ARP 640-1250

When your build demands the absolute best, trust ARP to deliver. These 1/4-20 x 1.250 chromoly bolts are not just components; they are a critical investment in the longevity and safety of your high-performance vehicle. Experience the unwavering confidence that comes from using ARP's industry-leading fasteners. Discover your next level of performance and security at GGCRACING.

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