Auto Racing Products 12-Point Chromoly Bolt Kit 3/8-16 x 1.250 — Universal Performance Fasteners

SKU: BQDN_644-1250
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About Auto Racing Products ARP (Automotive Racing Products) makes the ...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 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.

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Precision-Engineered 12-Point Fasteners

Experience the difference that professional-grade hardware makes in your vehicle build. These Auto Racing Products 12-point bolts are designed for enthusiasts who refuse to compromise on quality. Featuring a 3/8-16 thread pitch and a 1.250-inch length, these fasteners are ideal for a variety of automotive applications, from mounting accessories to securing engine brackets. The 12-point head configuration provides a larger contact surface for your socket, reducing the risk of rounding off heads during high-torque installation.

Key Features and Benefits

  • Thread Size: 3/8-16
  • Length: 1.250 inches
  • Head Type: 7/16 12-Point
  • Material: High-Strength Chromoly
  • Finish: Corrosion-Resistant Black Oxide
  • Package: 5-Piece Set

Constructed from heat-treated chromoly steel, these bolts offer significantly higher tensile strength than standard grade-8 hardware. The black oxide finish not only provides a sleek, professional appearance but also adds a layer of protection against environmental elements. Whether you are working on a street-strip machine or a dedicated track car, these bolts ensure that your components remain secure under the most demanding conditions. The compact head design is perfect for clearance-sensitive areas, making installation faster and more efficient. Upgrade your hardware today with this reliable kit from 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.

Watch in action

Precision-Engineered 12-Point Fasteners

Experience the difference that professional-grade hardware makes in your vehicle build. These Auto Racing Products 12-point bolts are designed for enthusiasts who refuse to compromise on quality. Featuring a 3/8-16 thread pitch and a 1.250-inch length, these fasteners are ideal for a variety of automotive applications, from mounting accessories to securing engine brackets. The 12-point head configuration provides a larger contact surface for your socket, reducing the risk of rounding off heads during high-torque installation.

Key Features and Benefits

  • Thread Size: 3/8-16
  • Length: 1.250 inches
  • Head Type: 7/16 12-Point
  • Material: High-Strength Chromoly
  • Finish: Corrosion-Resistant Black Oxide
  • Package: 5-Piece Set

Constructed from heat-treated chromoly steel, these bolts offer significantly higher tensile strength than standard grade-8 hardware. The black oxide finish not only provides a sleek, professional appearance but also adds a layer of protection against environmental elements. Whether you are working on a street-strip machine or a dedicated track car, these bolts ensure that your components remain secure under the most demanding conditions. The compact head design is perfect for clearance-sensitive areas, making installation faster and more efficient. Upgrade your hardware today with this reliable kit from 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.

Watch in action

Precision-Engineered 12-Point Fasteners

Experience the difference that professional-grade hardware makes in your vehicle build. These Auto Racing Products 12-point bolts are designed for enthusiasts who refuse to compromise on quality. Featuring a 3/8-16 thread pitch and a 1.250-inch length, these fasteners are ideal for a variety of automotive applications, from mounting accessories to securing engine brackets. The 12-point head configuration provides a larger contact surface for your socket, reducing the risk of rounding off heads during high-torque installation.

Key Features and Benefits

  • Thread Size: 3/8-16
  • Length: 1.250 inches
  • Head Type: 7/16 12-Point
  • Material: High-Strength Chromoly
  • Finish: Corrosion-Resistant Black Oxide
  • Package: 5-Piece Set

Constructed from heat-treated chromoly steel, these bolts offer significantly higher tensile strength than standard grade-8 hardware. The black oxide finish not only provides a sleek, professional appearance but also adds a layer of protection against environmental elements. Whether you are working on a street-strip machine or a dedicated track car, these bolts ensure that your components remain secure under the most demanding conditions. The compact head design is perfect for clearance-sensitive areas, making installation faster and more efficient. Upgrade your hardware today with this reliable kit from GGCRACING.

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