WG7121340130​ Is A Specialized Wheel Bolt​ For The Rear Drive Axle Hubs​ Of Heavy Commercial Vehicles

WG7121340130​ is a rear wheel bolt with nut​ assembly, whose core mission is to rigidly lock the wheel to the hub. It is a critical load-bearing component for vehicle driving safety.

1.Core Functions

2.Key Features and Selection Notes

1.Specification Matching: This part typically corresponds to large-diameter fine-pitch threads like M23×1.5, with a length of approximately 108mm. It must strictly match the original vehicle specifications and cannot be interchanged.

2.Strength Grade: Rear wheel bolts for heavy trucks usually require a Grade 10.9​ or higher to prevent plastic deformation or fracture under high preload.

3.Installation Specification: A torque wrench​ must be used to tighten the bolts in multiple stages and in a crisscross pattern to the manufacturer's specified torque (typically several hundred N·m). It is strictly forbidden​ to use an impact wrench directly, as this can over-stretch and weaken the bolt.