Nylon Insert Nut
The nylon insert nut is a low cost prevailing torque type self-locking nut. A nylon filled collar on top of the nut grips the bolt thread tight and provides a prevailing torque to resist loosening. It is suitable for applications experiencing normal ambient temperatures and can be re-used and still maintain a locking action. The finish on the nuts is BZP (Bright Zinc Plating). To achieve the full locking action of the nut it is recommended that at least two bolt threads should protrude through the top of the nut.