![Nylon Insert Locknut, Garde A National Fine](http://www.sterlinghardware.com/cdn/shop/products/00250_450_e8a33d60-4e0f-41b8-91b4-57435f79d11e_{width}x.jpg?v=1575439622)
Nylon Insert Locknut, Garde A National Fine
Nylon Instert Locknut NF: Hex nut with a nylon-filled collar at its back end. When a srew reaches the collar, the threads and nylon form a tight, frictional fit, restricting movement of the screw when it is subjected to vibration. Designed to be used with like-matter. *ZB - BLUE ZINC.