Thread Dia: M5 ; Thread Pitch:0.8mm. Height: 5mm / 0.2'' Width Across Flats: 8mm / 0.31''. Made of 304 stainless steel, rust resistance and durable to use.. With a nylon insert, these lock nuts greatly reduce loosening under vibrations and torque.. Can be widely used in door, construction machinery, shipbuilding and etc..
