Din6926/ISO7043 Metric class 8 Prevail Torque Nylon Insert Hex Flange Lock Nut Z

The nut may be reused up to 50 times, does not damage the threads of the fastener it is used with, withstands extreme vibrations without loosening. The flange design allows the nut to span larger holes than a standard nylon insert stop nut while providing a more uniform bearing-stress to clamp-force ratio.