21AX855UW
Nut
Mack

This durable fastener is essential for securing various components in heavy-duty truck assemblies. Its design ensures a tight fit, preventing loosening due to vibrations and operational stresses. Using high-grade materials, it provides reliable clamping force, which is crucial for maintaining structural integrity in critical connections. Whether used in suspension, chassis, or other assemblies, this nut contributes significantly to vehicle safety and durability. Proper installation and periodic checks help avoid component failures and ensure optimal performance. Source One Parts Center supplies these nuts to meet strict quality standards, making them a dependable choice for maintenance and repairs.