Hillman Nylon Insert Stop Nut

Forget the troubles of a screw loosening over time by using the Hillman Nylon Insert Stop Nut. This nut has a nylon insert that eradicates the need for a washer. This zinc plated nut's nylon insert will stretch while tightening and locks the position of the screw. With the nut's ability to resist vibrations, this is a must have nut in your toolbox.