FK Bearings 5/8-18 LH Steel Jam Nut — 3/4 Hex Threaded Fastener

SKU: BJCM_SJNL10-1
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About FK Bearings FK Bearings engineers high-quality automotive parts and ...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 FK Bearings

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

Watch in action

Precision Engineered Jam Nut for Racing Suspension

Ensure your rod ends and suspension linkages stay locked in place with the FK Bearings 5/8-18 Left Hand Steel Jam Nut. Designed for high-vibration racing environments, this jam nut provides the critical clamping force needed to prevent unwanted adjustments during competition. Crafted from high-strength steel with a zinc oxide finish, it offers superior corrosion resistance and durability under extreme stress.

Key Technical Specifications

  • Thread Size: 5/8-18 Left Hand (LH)
  • Hex Size: 3/4 inch
  • Material: High-Strength Steel
  • Finish: Zinc Oxide
  • Application: Rod ends, suspension links, and steering linkages

Whether you are building a custom chassis or performing routine maintenance on your race car, using high-quality fasteners is essential for safety and performance. The 3/4-inch hex profile allows for easy tightening with standard tools, ensuring a secure fit every time. This nut is a staple for professional builders and weekend warriors alike who demand consistency and reliability in their suspension setup. Trust the quality of FK Bearings to keep your steering geometry locked in tight. Find all your essential racing hardware and suspension components at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About FK Bearings

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

Watch in action

Precision Engineered Jam Nut for Racing Suspension

Ensure your rod ends and suspension linkages stay locked in place with the FK Bearings 5/8-18 Left Hand Steel Jam Nut. Designed for high-vibration racing environments, this jam nut provides the critical clamping force needed to prevent unwanted adjustments during competition. Crafted from high-strength steel with a zinc oxide finish, it offers superior corrosion resistance and durability under extreme stress.

Key Technical Specifications

  • Thread Size: 5/8-18 Left Hand (LH)
  • Hex Size: 3/4 inch
  • Material: High-Strength Steel
  • Finish: Zinc Oxide
  • Application: Rod ends, suspension links, and steering linkages

Whether you are building a custom chassis or performing routine maintenance on your race car, using high-quality fasteners is essential for safety and performance. The 3/4-inch hex profile allows for easy tightening with standard tools, ensuring a secure fit every time. This nut is a staple for professional builders and weekend warriors alike who demand consistency and reliability in their suspension setup. Trust the quality of FK Bearings to keep your steering geometry locked in tight. Find all your essential racing hardware and suspension components at GGCRACING.

Product Details

Product Description

About FK Bearings

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

Watch in action

Precision Engineered Jam Nut for Racing Suspension

Ensure your rod ends and suspension linkages stay locked in place with the FK Bearings 5/8-18 Left Hand Steel Jam Nut. Designed for high-vibration racing environments, this jam nut provides the critical clamping force needed to prevent unwanted adjustments during competition. Crafted from high-strength steel with a zinc oxide finish, it offers superior corrosion resistance and durability under extreme stress.

Key Technical Specifications

  • Thread Size: 5/8-18 Left Hand (LH)
  • Hex Size: 3/4 inch
  • Material: High-Strength Steel
  • Finish: Zinc Oxide
  • Application: Rod ends, suspension links, and steering linkages

Whether you are building a custom chassis or performing routine maintenance on your race car, using high-quality fasteners is essential for safety and performance. The 3/4-inch hex profile allows for easy tightening with standard tools, ensuring a secure fit every time. This nut is a staple for professional builders and weekend warriors alike who demand consistency and reliability in their suspension setup. Trust the quality of FK Bearings to keep your steering geometry locked in tight. Find all your essential racing hardware and suspension components at GGCRACING.

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