ARP Chrome Moly Hardened Washers with Chamfer

ARP Chrome Moly hardened washers with chamfer are precision-made flat washers for high-performance engine, driveline, and chassis fasteners. They are also sold as chrome moly chamfered washers or hardened flat washers. They provide a smooth, flat, load-bearing surface under bolt heads and nuts, so clamping force is spread evenly across the mating surface.

Key Features:

• Chrome moly steel construction for strength and durability in demanding applications
• Hardened to resist deformation and crushing under high clamping loads
• Chamfered edge that allows the washer to seat cleanly against the fillet radius under a fastener head, instead of riding up on it
• Precision machined for consistent flatness and fit
• Made by ARP, a long-established maker of high-performance fasteners for racing and performance use

These washers pair well with ARP bolts, studs, and nuts. They help maintain accurate torque readings and a stable clamp load in racing, street performance, and heavy-duty builds. Select the correct size for your fastener from the available options.