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The HKS M12 plate washer is an ISO‑standard M12 plate washer intended for use with M12 fasteners. Offered as a single hardware item, it provides a standardized bearing surface for bolted assemblies where an M12 washer is required. Use it in general engine or chassis fastener applications that call for an ISO M12 plate washer to ensure a consistent, specification-compliant fit.
HKS Plate Washer (ISO standard) M12
