A nut with a pre-vering torque effect on common hex nuts and flange nuts that are tightened by only axis.
Even if the nut is in the middle position of the bolt, it is completely locked so it will not fall off.
It can be used 2 to 5 times even if you remove it once.
Can be used directly to the Portto in current use.
Compared to general use (hex nut + flat washer), one three lock nut is better for better workability.