ARP 200-8730 Chrome Moly Hardened Washers ID - 3/8 10-Piece

ARP 200-8730 premium chrome moly washers are engineered for high-performance engine applications where precision and reliability are critical. These hardened washers feature parallel-ground surfaces and chamfered inside diameters for optimal load distribution and proper fastener seating.

Key Features:

• Premium chrome moly steel construction for superior strength and durability
• Parallel-ground surfaces ensure even clamping force distribution
• Hardened and heat-treated to withstand extreme cylinder pressures
• Black oxide finish provides corrosion resistance
• Chamfered inner diameter for proper bolt head or nut seating
• 3/8 inch inside diameter fits standard cylinder head studs and bolts
• Includes 10 washers per package

ARP washers are precision-manufactured to exacting tolerances and are essential components when installing cylinder head studs or bolts. The chamfered ID helps center the fastener and prevents edge loading, while the hardened material resists compression and maintains proper torque values. These washers are ideal for use with ARP head studs and bolts in racing, street performance, and heavy-duty applications.