21AX873
Nut
Mack

This heavy-duty nut is designed to secure fasteners and components in various truck assemblies, providing reliable clamping force under demanding conditions. Its durable construction ensures resistance to vibration, corrosion, and mechanical stress, making it suitable for critical connections in the vehicle’s chassis, drivetrain, or suspension systems. Properly torqued, this nut helps maintain structural integrity and prevents loosening that could lead to component failure. Its compatibility with a wide range of fasteners makes it a versatile choice for repairs and maintenance. Source One Parts Center supplies this high-quality nut to support your truck’s safety and operational reliability. Using the right fasteners like this nut is essential for long-term vehicle performance and safety assurance.