21AX943
Nut
Mack

This robust nut plays a critical role in maintaining secure connections across various truck systems. Engineered for durability, it withstands the harsh environments typical of heavy-duty operations, including exposure to moisture, dirt, and vibration. Its precise threading ensures a secure fit that resists loosening over time, safeguarding critical assemblies such as suspension, drivetrain, or chassis components. The corrosion-resistant coating helps preserve its strength and appearance, even after prolonged use. Reliable fastening is vital for vehicle safety and operational efficiency, making this nut an indispensable part of your maintenance inventory. Source One Parts Center supplies this component to meet industry standards, ensuring dependable performance on the road.