93400482
Nut - Hex Head, 1/2-13, Grade 8
SAF-Holland

Hexagonal nut with 1/2-13 inch thread and Grade 8 construction delivers high-strength clamping for critical suspension and axle connections. The Grade 8 rating signals superior tensile strength and resistance to fatigue under heavy loads, making it well-suited for high-demand applications such as mounting yokes, brackets, and linkages in trailer and bus suspensions. VMRS code 053-007-004 classifies it with standard axle and suspension fasteners, enabling consistent documentation and compatibility checks across service manuals and parts catalogs. Category 42590 confirms its role as a core hardware element for trailer axle and suspension systems. Practical benefits include improved preload stability, reduced likelihood of loosening in rough road conditions, and enhanced alignment retention over the service life of a fleet. When paired with the appropriate bolt and washer, this nut supports reliable joint integrity, contributing to safer towing performance and lower maintenance costs.