FLANGE NUT DXTB223 M18x1.5xS30xH29-30/M18x2xS27xH21~30

Provide enormous preload force to achieve rigid connection
The chassis, axles, suspension system (such as steel plate springs), engine mounts, and other parts of a truck need to withstand enormous loads, impacts, and continuous vibrations. Ordinary nuts cannot provide sufficient locking force. This 10 grade high-strength nut can apply tens of thousands of newtons of pre tightening force when tightened with bolts of the same strength (such as 10.9 grade). This powerful force will be tightly "clamped" together by connecting components such as frame beams and suspension brackets, almost forming a whole, thereby transmitting power, load, and braking force, ensuring the integrity and rigidity of the vehicle structure.
Resist strong vibrations and impacts to prevent loosening and failure
When a truck is driving on rough roads, the connection points will continue to experience multi-directional vibrations and impacts. This is the biggest challenge faced by fasteners. Once the nut becomes loose and the pre tightening force disappears, the connection will fail, which may result in abnormal noise and component wear, or in severe cases, component detachment, leading to serious accidents. High strength nuts themselves have higher hardness and deformation resistance. After tightening with the bolt, a huge frictional force will be generated between the threads, which itself is an effective anti loosening mechanism. In addition, it usually needs to be paired with washers (such as spring washers, toothed anti loosening washers) or threaded locking glue to form multiple lines of defense, ensuring that it remains locked during millions of kilometers of driving.

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