Auto Racing Products Chromoly Flat Washers - 5/16" ID, 13/16" OD, Black Oxide (Set of 10)

SKU: BQDN_200-8588
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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.

Maximized Load Distribution with ARP Chromoly Flat Washers - 13/16" OD

Achieve superior fastening performance and component protection with the Auto Racing Products 5/16" ID Chromoly Flat Washers, featuring an expansive 13/16" outer diameter. These specialized washers are engineered to maximize load distribution, making them indispensable for applications where increased surface contact is crucial to prevent material deformation or pull-through. Crafted from high-strength chromoly steel, they offer unparalleled durability and resistance to the extreme forces encountered in high-performance automotive and racing settings. The wider outer diameter provides a larger bearing surface, effectively spreading the clamping force and ensuring a more secure and stable bolted joint, even under significant stress and vibration, thereby extending component life.

Advanced Features & Benefits:

  • Premium Chromoly Construction: Utilizes high-grade chromoly steel for exceptional strength, resilience, and resistance to fatigue, vital for demanding applications.
  • Durable Black Oxide Finish: Provides a robust layer of corrosion protection, ensuring longevity and a professional, stealthy appearance that resists environmental factors.
  • Expanded 13/16" Outer Diameter: Specifically designed to offer a larger bearing surface, optimizing load distribution and minimizing material stress on mating parts.
  • Precise Specifications: Features a 0.313 inch inner diameter, 0.813 inch outer diameter (13/16"), and 0.12 inch thickness for accurate fitment and consistent performance.
  • Prevents Component Damage: Reduces the risk of fastener embedment and deformation of mating surfaces, significantly extending the life of your valuable parts.

The Ultimate in High-Strength Fastening

These ARP chromoly flat washers are a critical upgrade for any project requiring enhanced security and structural integrity. Their wider design is particularly advantageous in softer materials or where a larger footprint is needed to prevent the fastener head from sinking, providing superior stability. The black oxide coating not only protects the washer from environmental factors but also complements the high-performance aesthetic of your build, ensuring a cohesive look. This set of ten washers embodies the precision and quality synonymous with Auto Racing Products, offering peace of mind for your most critical assemblies. For all your high-strength fastening requirements, turn to GGCRACING for reliable solutions.

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.

Maximized Load Distribution with ARP Chromoly Flat Washers - 13/16" OD

Achieve superior fastening performance and component protection with the Auto Racing Products 5/16" ID Chromoly Flat Washers, featuring an expansive 13/16" outer diameter. These specialized washers are engineered to maximize load distribution, making them indispensable for applications where increased surface contact is crucial to prevent material deformation or pull-through. Crafted from high-strength chromoly steel, they offer unparalleled durability and resistance to the extreme forces encountered in high-performance automotive and racing settings. The wider outer diameter provides a larger bearing surface, effectively spreading the clamping force and ensuring a more secure and stable bolted joint, even under significant stress and vibration, thereby extending component life.

Advanced Features & Benefits:

  • Premium Chromoly Construction: Utilizes high-grade chromoly steel for exceptional strength, resilience, and resistance to fatigue, vital for demanding applications.
  • Durable Black Oxide Finish: Provides a robust layer of corrosion protection, ensuring longevity and a professional, stealthy appearance that resists environmental factors.
  • Expanded 13/16" Outer Diameter: Specifically designed to offer a larger bearing surface, optimizing load distribution and minimizing material stress on mating parts.
  • Precise Specifications: Features a 0.313 inch inner diameter, 0.813 inch outer diameter (13/16"), and 0.12 inch thickness for accurate fitment and consistent performance.
  • Prevents Component Damage: Reduces the risk of fastener embedment and deformation of mating surfaces, significantly extending the life of your valuable parts.

The Ultimate in High-Strength Fastening

These ARP chromoly flat washers are a critical upgrade for any project requiring enhanced security and structural integrity. Their wider design is particularly advantageous in softer materials or where a larger footprint is needed to prevent the fastener head from sinking, providing superior stability. The black oxide coating not only protects the washer from environmental factors but also complements the high-performance aesthetic of your build, ensuring a cohesive look. This set of ten washers embodies the precision and quality synonymous with Auto Racing Products, offering peace of mind for your most critical assemblies. For all your high-strength fastening requirements, turn to GGCRACING for reliable solutions.

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.

Maximized Load Distribution with ARP Chromoly Flat Washers - 13/16" OD

Achieve superior fastening performance and component protection with the Auto Racing Products 5/16" ID Chromoly Flat Washers, featuring an expansive 13/16" outer diameter. These specialized washers are engineered to maximize load distribution, making them indispensable for applications where increased surface contact is crucial to prevent material deformation or pull-through. Crafted from high-strength chromoly steel, they offer unparalleled durability and resistance to the extreme forces encountered in high-performance automotive and racing settings. The wider outer diameter provides a larger bearing surface, effectively spreading the clamping force and ensuring a more secure and stable bolted joint, even under significant stress and vibration, thereby extending component life.

Advanced Features & Benefits:

  • Premium Chromoly Construction: Utilizes high-grade chromoly steel for exceptional strength, resilience, and resistance to fatigue, vital for demanding applications.
  • Durable Black Oxide Finish: Provides a robust layer of corrosion protection, ensuring longevity and a professional, stealthy appearance that resists environmental factors.
  • Expanded 13/16" Outer Diameter: Specifically designed to offer a larger bearing surface, optimizing load distribution and minimizing material stress on mating parts.
  • Precise Specifications: Features a 0.313 inch inner diameter, 0.813 inch outer diameter (13/16"), and 0.12 inch thickness for accurate fitment and consistent performance.
  • Prevents Component Damage: Reduces the risk of fastener embedment and deformation of mating surfaces, significantly extending the life of your valuable parts.

The Ultimate in High-Strength Fastening

These ARP chromoly flat washers are a critical upgrade for any project requiring enhanced security and structural integrity. Their wider design is particularly advantageous in softer materials or where a larger footprint is needed to prevent the fastener head from sinking, providing superior stability. The black oxide coating not only protects the washer from environmental factors but also complements the high-performance aesthetic of your build, ensuring a cohesive look. This set of ten washers embodies the precision and quality synonymous with Auto Racing Products, offering peace of mind for your most critical assemblies. For all your high-strength fastening requirements, turn to GGCRACING for reliable solutions.

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