Tuerca Nyloc 6MM 10 rosca métrica chapada en zinc para tornillo y perno de juego M6 9006753
Nylon insert nuts made by DYNATEX. These nuts have a one-way drive style and are made of steel and zinc. They are grade 5 and have an open end type. The nylon insert is situated at the top of the nut and when tightened locks against the thread.