01643-33380 Washer D475 Ideal for Industrial Equipment Need

The 01643-33380 washer is a heavy-duty structural flat washer designed for high-stress industrial machinery. It sits between a high-torque bolt head or nut and the machine surface to evenly distribute immense clamping loads, preventing surface deformation and keeping critical bolted joints secure.

This heavy-duty washer is specifically cataloged for ultra-large mining equipment, most notably the giant D475 crawler bulldozer series (including D475A-3, D475A-5, and D475A-5E0 models). It is also found in other super-heavy mining trucks and large-scale earthmovers that require extra-large fasteners.

It is manufactured from high-grade, heat-treated carbon steel or hardened alloy steel. This structural metallurgy ensures the washer achieves an exceptionally high hardness rating, preventing it from crushing, warping, or cracking under extreme tightening torque.