ARP 200-8748 Chrome Moly Hardened Washers - 10-Piece Set

These precision-engineered washers feature a 3/8-inch inside diameter with no chamfer design, providing optimal load distribution for cylinder head fasteners and other critical engine hardware.

Key Features:

• Premium chrome moly steel construction for superior strength and durability
• Parallel-ground surfaces ensure even clamping pressure and prevent fastener embedment
• Heat-treated and hardened for maximum performance under extreme cylinder pressures
• Black oxide finish provides corrosion resistance and professional appearance
• No chamfer design for specific applications requiring flat bearing surfaces
• Precision manufactured to ARP's exacting tolerances

ARP washers are essential components when installing high-performance fasteners, preventing the fastener from pulling through softer materials like aluminum cylinder heads. The parallel-ground surfaces eliminate the need for multiple re-torquing cycles during initial break-in. Each washer is manufactured to aerospace standards, making them ideal for racing engines, high-boost forced induction applications, and any engine build requiring maximum reliability.