Steel Washer Convex Style

The Steel Washer Convex Style (ALL 18440) from ALLSTAR PERFORMANCE is a precision-engineered tapered washer designed for critical pivot assembly applications in automotive and mechanical systems. This 0.75-inch inner diameter washer serves as a load-distribution component that prevents bolt heads and fasteners from sinking into softer materials while maintaining proper clamping force. Used across chassis assembly, suspension mounting, and engine bay fastening, the convex profile ensures even pressure distribution across irregular or curved surfaces.

Manufactured from durable steel and finished with cadmium plating for corrosion resistance, this washer features a 2.62-inch outer diameter that provides substantial bearing surface for load spreading. The convex (curved) design is purpose-built to accommodate fastening scenarios where surfaces are not perfectly flat, a common condition in pivot points and articulating joints. Cadmium plating offers superior protection against rust and environmental degradation, making it ideal for applications exposed to moisture, salt spray, or temperature cycling. The tapered geometry reduces fastener rotation and improves joint integrity under vibration and stress.

Professionals restoring classic vehicles, assembling race car chassis, and performing high-reliability mechanical work rely on ALLSTAR PERFORMANCE washers to ensure consistent, lasting fastener performance. The convex profile makes this washer particularly valuable in pivot assembly applications where angular surfaces demand conforming load distribution. Installation is straightforward: position the washer under the bolt head before fastening, allowing the curved surface to seat naturally against the work surface. Each unit is sold individually, enabling precise inventory control for targeted repairs or complete restoration projects.