Auto Racing Products Stainless Steel 12-Point Bolt Kit — 8mm x 1.25 x 40mm Universal Fitment

SKU: BQDN_771-1005
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About Auto Racing Products ARP (Automotive Racing Products) makes the ...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 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.

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Professional Grade 8mm x 40mm 12-Point Bolts

When your engine build requires specific length hardware, the Auto Racing Products 8mm x 40mm 12-point bolt kit delivers the precision and strength you need. These bolts are manufactured from high-quality stainless steel, providing a rust-free, polished appearance that elevates the look of any engine bay. The 12-point head configuration is specifically chosen for high-performance applications, allowing for precise torque settings and increased clearance in tight quarters.

Key Specifications

  • Thread Size: 8mm x 1.25
  • Length: 40mm
  • Head Style: 10mm 12-Point
  • Material: Polished Stainless Steel
  • Quantity: 5 Pack
  • Universal Compatibility

These bolts are an excellent choice for mounting accessories, brackets, or custom fabricated parts where a standard hex head might be difficult to reach. The 12-point design provides a larger contact area for your socket, virtually eliminating the risk of slipping or stripping the head during installation. Because they are constructed from premium stainless steel, they offer excellent tensile strength and long-term durability against heat and moisture. Whether you are a weekend mechanic or a professional builder, these bolts provide the reliability required for high-stress environments. Upgrade your engine hardware with confidence using components from GGCRACING.

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.

Watch in action

Professional Grade 8mm x 40mm 12-Point Bolts

When your engine build requires specific length hardware, the Auto Racing Products 8mm x 40mm 12-point bolt kit delivers the precision and strength you need. These bolts are manufactured from high-quality stainless steel, providing a rust-free, polished appearance that elevates the look of any engine bay. The 12-point head configuration is specifically chosen for high-performance applications, allowing for precise torque settings and increased clearance in tight quarters.

Key Specifications

  • Thread Size: 8mm x 1.25
  • Length: 40mm
  • Head Style: 10mm 12-Point
  • Material: Polished Stainless Steel
  • Quantity: 5 Pack
  • Universal Compatibility

These bolts are an excellent choice for mounting accessories, brackets, or custom fabricated parts where a standard hex head might be difficult to reach. The 12-point design provides a larger contact area for your socket, virtually eliminating the risk of slipping or stripping the head during installation. Because they are constructed from premium stainless steel, they offer excellent tensile strength and long-term durability against heat and moisture. Whether you are a weekend mechanic or a professional builder, these bolts provide the reliability required for high-stress environments. Upgrade your engine hardware with confidence using components from GGCRACING.

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.

Watch in action

Professional Grade 8mm x 40mm 12-Point Bolts

When your engine build requires specific length hardware, the Auto Racing Products 8mm x 40mm 12-point bolt kit delivers the precision and strength you need. These bolts are manufactured from high-quality stainless steel, providing a rust-free, polished appearance that elevates the look of any engine bay. The 12-point head configuration is specifically chosen for high-performance applications, allowing for precise torque settings and increased clearance in tight quarters.

Key Specifications

  • Thread Size: 8mm x 1.25
  • Length: 40mm
  • Head Style: 10mm 12-Point
  • Material: Polished Stainless Steel
  • Quantity: 5 Pack
  • Universal Compatibility

These bolts are an excellent choice for mounting accessories, brackets, or custom fabricated parts where a standard hex head might be difficult to reach. The 12-point design provides a larger contact area for your socket, virtually eliminating the risk of slipping or stripping the head during installation. Because they are constructed from premium stainless steel, they offer excellent tensile strength and long-term durability against heat and moisture. Whether you are a weekend mechanic or a professional builder, these bolts provide the reliability required for high-stress environments. Upgrade your engine hardware with confidence using components from GGCRACING.

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