ARP M12 x 1.25 x 4.95 Stud — 1.175 Thread Length High-Strength

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SKU: ARPAU4.950-2UB
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About ARP ARP (Automotive Racing Products) makes the strongest fasteners ...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 ARP

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.

Precision ARP M12 x 1.25 Studs

The ARP M12 x 1.25 x 4.95 stud is engineered for precision applications requiring specific thread engagement. With a 1.175-inch thread length, this stud provides the perfect balance of holding power and versatility for custom engine configurations. ARP is globally recognized for producing the finest fasteners in the automotive industry, and this stud is no exception.

Why Performance Builders Trust ARP

  • Precision Threading: 1.25 pitch provides excellent clamping force for critical assemblies.
  • High-Strength Alloy: Designed to resist stretching and fatigue over thousands of miles.
  • Exact Specifications: 4.95-inch length ensures proper fitment for specific engine blocks.
  • Reliability: Proven performance in drag racing, road racing, and high-performance street builds.

Using the correct fastener length and thread pitch is vital for engine longevity. This ARP stud ensures that your components remain locked in place, regardless of the RPM or boost levels you are running. The meticulous manufacturing process guarantees that each stud is identical in strength and performance, giving you the confidence to push your engine harder. Don't settle for inferior hardware that could lead to catastrophic failure. Upgrade to the gold standard in engine fasteners and ensure your build is ready for the track. For all your high-performance engine component needs, trust the experts at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About ARP

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.

Precision ARP M12 x 1.25 Studs

The ARP M12 x 1.25 x 4.95 stud is engineered for precision applications requiring specific thread engagement. With a 1.175-inch thread length, this stud provides the perfect balance of holding power and versatility for custom engine configurations. ARP is globally recognized for producing the finest fasteners in the automotive industry, and this stud is no exception.

Why Performance Builders Trust ARP

  • Precision Threading: 1.25 pitch provides excellent clamping force for critical assemblies.
  • High-Strength Alloy: Designed to resist stretching and fatigue over thousands of miles.
  • Exact Specifications: 4.95-inch length ensures proper fitment for specific engine blocks.
  • Reliability: Proven performance in drag racing, road racing, and high-performance street builds.

Using the correct fastener length and thread pitch is vital for engine longevity. This ARP stud ensures that your components remain locked in place, regardless of the RPM or boost levels you are running. The meticulous manufacturing process guarantees that each stud is identical in strength and performance, giving you the confidence to push your engine harder. Don't settle for inferior hardware that could lead to catastrophic failure. Upgrade to the gold standard in engine fasteners and ensure your build is ready for the track. For all your high-performance engine component needs, trust the experts at GGCRACING.

Product Details

Product Description

About ARP

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.

Precision ARP M12 x 1.25 Studs

The ARP M12 x 1.25 x 4.95 stud is engineered for precision applications requiring specific thread engagement. With a 1.175-inch thread length, this stud provides the perfect balance of holding power and versatility for custom engine configurations. ARP is globally recognized for producing the finest fasteners in the automotive industry, and this stud is no exception.

Why Performance Builders Trust ARP

  • Precision Threading: 1.25 pitch provides excellent clamping force for critical assemblies.
  • High-Strength Alloy: Designed to resist stretching and fatigue over thousands of miles.
  • Exact Specifications: 4.95-inch length ensures proper fitment for specific engine blocks.
  • Reliability: Proven performance in drag racing, road racing, and high-performance street builds.

Using the correct fastener length and thread pitch is vital for engine longevity. This ARP stud ensures that your components remain locked in place, regardless of the RPM or boost levels you are running. The meticulous manufacturing process guarantees that each stud is identical in strength and performance, giving you the confidence to push your engine harder. Don't settle for inferior hardware that could lead to catastrophic failure. Upgrade to the gold standard in engine fasteners and ensure your build is ready for the track. For all your high-performance engine component needs, trust the experts at GGCRACING.

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