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        1. Characteristics of din25201 double fold self-locking washer
          Ensure that the clamping force of the connector is still maintained under strong vibration, which is better than the fastener made by friction force; prevent bolt loosening caused by vibration and no related problems caused by fastener loosening; no special installation work is required, and it is easy to install and disassemble; the system can lock the fixed components with high or low preload force; it is not affected by the original tightening force Ring! The locking function is not affected by lubrication and temperature changes will not make the connection loose; it has durability and can be reused