Auto Racing Products 1/2 ID x 7/8 OD Chamfered Flat Washer — High-Strength Chromoly

SKU: BQDN_200-8513
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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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Premium Chamfered Chromoly Washers

Optimize your engine build with these professional-grade chamfered flat washers from Auto Racing Products. Designed specifically for high-performance applications, these washers feature a chamfered edge to ensure proper clearance and seating against radius-head bolts, preventing stress concentrations that can lead to fastener failure.

Key Features and Benefits

  • Inner Diameter: 1/2 inch
  • Outer Diameter: 7/8 inch
  • Thickness: 0.12 inch
  • Design: Chamfered for Radius Clearance
  • Material: Hardened Chromoly Steel

Constructed from high-strength chromoly steel, these washers offer exceptional resistance to deformation under high clamping loads. The black oxide finish provides a sleek, durable surface that resists corrosion, ensuring your hardware remains reliable throughout the racing season. These washers are essential for builders who demand precision and consistency. By utilizing a chamfered design, you ensure that the fastener head sits flush, allowing for accurate torque application and reduced risk of backing off under vibration. Whether you are working on a custom engine build or performing routine maintenance on a race car, these washers provide the peace of mind that comes with using top-tier components. Upgrade your fastener kit with these specialized washers for superior performance. Find these and other essential racing parts 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.

Watch in action

Premium Chamfered Chromoly Washers

Optimize your engine build with these professional-grade chamfered flat washers from Auto Racing Products. Designed specifically for high-performance applications, these washers feature a chamfered edge to ensure proper clearance and seating against radius-head bolts, preventing stress concentrations that can lead to fastener failure.

Key Features and Benefits

  • Inner Diameter: 1/2 inch
  • Outer Diameter: 7/8 inch
  • Thickness: 0.12 inch
  • Design: Chamfered for Radius Clearance
  • Material: Hardened Chromoly Steel

Constructed from high-strength chromoly steel, these washers offer exceptional resistance to deformation under high clamping loads. The black oxide finish provides a sleek, durable surface that resists corrosion, ensuring your hardware remains reliable throughout the racing season. These washers are essential for builders who demand precision and consistency. By utilizing a chamfered design, you ensure that the fastener head sits flush, allowing for accurate torque application and reduced risk of backing off under vibration. Whether you are working on a custom engine build or performing routine maintenance on a race car, these washers provide the peace of mind that comes with using top-tier components. Upgrade your fastener kit with these specialized washers for superior performance. Find these and other essential racing parts 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.

Watch in action

Premium Chamfered Chromoly Washers

Optimize your engine build with these professional-grade chamfered flat washers from Auto Racing Products. Designed specifically for high-performance applications, these washers feature a chamfered edge to ensure proper clearance and seating against radius-head bolts, preventing stress concentrations that can lead to fastener failure.

Key Features and Benefits

  • Inner Diameter: 1/2 inch
  • Outer Diameter: 7/8 inch
  • Thickness: 0.12 inch
  • Design: Chamfered for Radius Clearance
  • Material: Hardened Chromoly Steel

Constructed from high-strength chromoly steel, these washers offer exceptional resistance to deformation under high clamping loads. The black oxide finish provides a sleek, durable surface that resists corrosion, ensuring your hardware remains reliable throughout the racing season. These washers are essential for builders who demand precision and consistency. By utilizing a chamfered design, you ensure that the fastener head sits flush, allowing for accurate torque application and reduced risk of backing off under vibration. Whether you are working on a custom engine build or performing routine maintenance on a race car, these washers provide the peace of mind that comes with using top-tier components. Upgrade your fastener kit with these specialized washers for superior performance. Find these and other essential racing parts at GGCRACING.

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