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ARP stainless steel M10 washer with a .850-inch outer diameter, supplied as a hardware washer. These precision washers create a stable bearing surface to distribute clamping force for M10 fasteners in engine and automotive applications. The consistent OD helps ensure predictable contact area under bolt heads or nuts. Use with compatible fasteners where an M10 washer of this diameter is required.
ARP M10 ID .850 OD SS washer
