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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.
When building a high-performance engine, every component matters. These ARP 1/2in ID 7/8in OD black washers are designed to provide a consistent, flat surface for proper torque distribution. Manufactured from high-strength materials, these washers prevent galling and ensure your fasteners maintain clamping force under extreme heat and vibration.
Using inferior hardware can lead to uneven torque readings and potential engine failure. ARP is the industry standard for racing fasteners, providing the reliability needed for street, strip, and track vehicles. Whether you are assembling a cylinder head or securing main caps, these washers offer the structural integrity required for professional-grade builds. Their precision-machined dimensions ensure a perfect fit with standard 1/2-inch studs and bolts, reducing the risk of fastener backing out or damaging your engine block surface. Trust your build to the best in the business and find all your essential hardware needs at GGCRACING.
Other popular ARP products customers consider together:
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.
When building a high-performance engine, every component matters. These ARP 1/2in ID 7/8in OD black washers are designed to provide a consistent, flat surface for proper torque distribution. Manufactured from high-strength materials, these washers prevent galling and ensure your fasteners maintain clamping force under extreme heat and vibration.
Using inferior hardware can lead to uneven torque readings and potential engine failure. ARP is the industry standard for racing fasteners, providing the reliability needed for street, strip, and track vehicles. Whether you are assembling a cylinder head or securing main caps, these washers offer the structural integrity required for professional-grade builds. Their precision-machined dimensions ensure a perfect fit with standard 1/2-inch studs and bolts, reducing the risk of fastener backing out or damaging your engine block surface. Trust your build to the best in the business and find all your essential hardware needs at GGCRACING.
Other popular ARP products customers consider together:
