WASHER - HARDENED 1/4-ZINC PLTD (Doosan DWD900025)

A hardened washer that has lost its zinc plating can allow corrosion to spread into the fastener joint. The catalog reference for this aftermarket replacement part is Doosan DWD900025. This washer type provides a hardened bearing surface under a fastener head. A plain mechanical function of a hardened washer is to distribute clamping load over a wider area. A concrete generic failure consequence is that a missing or crushed hardened washer can cause the fastener to loosen under vibration. Keeping a hardened washer in sound condition helps maintain consistent torque retention in bolted connections. Verify the serial number or application, then call (562) 693-7748.

Part number variants: DWD900025, dwd900025