Mark Williams Integral Aluminum Lug Nut 5/8-18 1/8in Grip — Flat Seat Racing

SKU: BJFM_51520
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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 Mark Williams

Mark Williams engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Mark Williams lineup with fast shipping and expert fitment support — order with confidence.

High-Performance Integral Aluminum Lug Nuts

When every fraction of a second counts, ensure your wheels are securely fastened with Mark Williams integral aluminum lug nuts. Specifically designed for racing applications requiring a 5/8-18 thread, these lug nuts feature a 1/8in grip and a precision flat seat to provide maximum surface contact. The open-end design allows for quick wheel changes in the pits, while the lightweight aluminum construction reduces unsprung weight for improved suspension response.

Technical Features and Benefits

  • Thread: 5/8-18 Right Hand
  • Grip Length: 1/8in
  • Hex Size: 13/16in
  • Seat Type: Flat Seat
  • Material: Lightweight Aluminum
  • Finish: Black/Gold Anodized

These lug nuts are not just about aesthetics; they are engineered for structural integrity. The encapsulated design ensures a snug fit against your wheels, preventing loosening under the extreme vibration and torque experienced during drag racing. The black and gold anodized finish provides excellent corrosion resistance, keeping your hardware looking as good as it performs. Always verify your wheel stud length and seat type before installation to ensure proper thread engagement and safety. Upgrade your wheel fastening system with the trusted quality of Mark Williams, available now at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Mark Williams

Mark Williams engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Mark Williams lineup with fast shipping and expert fitment support — order with confidence.

High-Performance Integral Aluminum Lug Nuts

When every fraction of a second counts, ensure your wheels are securely fastened with Mark Williams integral aluminum lug nuts. Specifically designed for racing applications requiring a 5/8-18 thread, these lug nuts feature a 1/8in grip and a precision flat seat to provide maximum surface contact. The open-end design allows for quick wheel changes in the pits, while the lightweight aluminum construction reduces unsprung weight for improved suspension response.

Technical Features and Benefits

  • Thread: 5/8-18 Right Hand
  • Grip Length: 1/8in
  • Hex Size: 13/16in
  • Seat Type: Flat Seat
  • Material: Lightweight Aluminum
  • Finish: Black/Gold Anodized

These lug nuts are not just about aesthetics; they are engineered for structural integrity. The encapsulated design ensures a snug fit against your wheels, preventing loosening under the extreme vibration and torque experienced during drag racing. The black and gold anodized finish provides excellent corrosion resistance, keeping your hardware looking as good as it performs. Always verify your wheel stud length and seat type before installation to ensure proper thread engagement and safety. Upgrade your wheel fastening system with the trusted quality of Mark Williams, available now at GGCRACING.

Product Details

Product Description

About Mark Williams

Mark Williams engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Mark Williams lineup with fast shipping and expert fitment support — order with confidence.

High-Performance Integral Aluminum Lug Nuts

When every fraction of a second counts, ensure your wheels are securely fastened with Mark Williams integral aluminum lug nuts. Specifically designed for racing applications requiring a 5/8-18 thread, these lug nuts feature a 1/8in grip and a precision flat seat to provide maximum surface contact. The open-end design allows for quick wheel changes in the pits, while the lightweight aluminum construction reduces unsprung weight for improved suspension response.

Technical Features and Benefits

  • Thread: 5/8-18 Right Hand
  • Grip Length: 1/8in
  • Hex Size: 13/16in
  • Seat Type: Flat Seat
  • Material: Lightweight Aluminum
  • Finish: Black/Gold Anodized

These lug nuts are not just about aesthetics; they are engineered for structural integrity. The encapsulated design ensures a snug fit against your wheels, preventing loosening under the extreme vibration and torque experienced during drag racing. The black and gold anodized finish provides excellent corrosion resistance, keeping your hardware looking as good as it performs. Always verify your wheel stud length and seat type before installation to ensure proper thread engagement and safety. Upgrade your wheel fastening system with the trusted quality of Mark Williams, available now at GGCRACING.

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