T&D Machine Rocker Arm Shaft Bolt — 5/16-18 x 1.125 Torx Head

SKU: BJJD_05131
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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 T&D Machine

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

Watch in action

High-Performance Rocker Arm Shaft Bolt

The T&D Machine 5/16-18 x 1.125 rocker arm shaft bolt is a critical component for maintaining valvetrain integrity. Engineered for durability, this bolt features a Torx head design that allows for superior torque application and reduced risk of stripping compared to standard hex heads. This ensures your rocker shaft assembly stays firmly in place, even under the extreme vibrations and heat of a racing environment.

Key Features and Benefits

  • Thread Pitch: 5/16-18
  • Length: 1.125 inches
  • Drive Type: Torx Head
  • Material: Premium Hardened Steel
  • Application: Rocker Arm Shaft Mounting

Proper shaft alignment is vital for consistent valve timing and lift. This T&D Machine bolt provides the exact fitment required for high-performance cylinder heads, preventing movement that can lead to premature wear or catastrophic failure. The precision-machined threads ensure smooth engagement, allowing for accurate torque values every time you service your engine. Whether you are running a street-strip setup or a dedicated drag car, this fastener delivers the reliability required for competitive performance. Upgrade your valvetrain hardware with confidence knowing you are using industry-leading components. For all your specialized engine fasteners, rely on the expert selection at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About T&D Machine

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

Watch in action

High-Performance Rocker Arm Shaft Bolt

The T&D Machine 5/16-18 x 1.125 rocker arm shaft bolt is a critical component for maintaining valvetrain integrity. Engineered for durability, this bolt features a Torx head design that allows for superior torque application and reduced risk of stripping compared to standard hex heads. This ensures your rocker shaft assembly stays firmly in place, even under the extreme vibrations and heat of a racing environment.

Key Features and Benefits

  • Thread Pitch: 5/16-18
  • Length: 1.125 inches
  • Drive Type: Torx Head
  • Material: Premium Hardened Steel
  • Application: Rocker Arm Shaft Mounting

Proper shaft alignment is vital for consistent valve timing and lift. This T&D Machine bolt provides the exact fitment required for high-performance cylinder heads, preventing movement that can lead to premature wear or catastrophic failure. The precision-machined threads ensure smooth engagement, allowing for accurate torque values every time you service your engine. Whether you are running a street-strip setup or a dedicated drag car, this fastener delivers the reliability required for competitive performance. Upgrade your valvetrain hardware with confidence knowing you are using industry-leading components. For all your specialized engine fasteners, rely on the expert selection at GGCRACING.

Product Details

Product Description

About T&D Machine

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

Watch in action

High-Performance Rocker Arm Shaft Bolt

The T&D Machine 5/16-18 x 1.125 rocker arm shaft bolt is a critical component for maintaining valvetrain integrity. Engineered for durability, this bolt features a Torx head design that allows for superior torque application and reduced risk of stripping compared to standard hex heads. This ensures your rocker shaft assembly stays firmly in place, even under the extreme vibrations and heat of a racing environment.

Key Features and Benefits

  • Thread Pitch: 5/16-18
  • Length: 1.125 inches
  • Drive Type: Torx Head
  • Material: Premium Hardened Steel
  • Application: Rocker Arm Shaft Mounting

Proper shaft alignment is vital for consistent valve timing and lift. This T&D Machine bolt provides the exact fitment required for high-performance cylinder heads, preventing movement that can lead to premature wear or catastrophic failure. The precision-machined threads ensure smooth engagement, allowing for accurate torque values every time you service your engine. Whether you are running a street-strip setup or a dedicated drag car, this fastener delivers the reliability required for competitive performance. Upgrade your valvetrain hardware with confidence knowing you are using industry-leading components. For all your specialized engine fasteners, rely on the expert selection at GGCRACING.

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