[M12 Metric] - Thread Dia: M12; Thread Pitch: 1.75mm. [Size] - Width: 19mm/ 0.75"; Height: 12mm/ 0.47". [Material] - Made of 304 stainless steel, high hardness and corrosion resistance. Using nylon inserts, these lock nuts greatly reduce loosening under vibration and torque.. [Usage] - Used in conjunction with bolts, washers, or screws as fasteners when mechanically joining materials together.. [Application] - Can be widely used in the machinery industry, instruments, electronic products, garage, home appliances, furniture, ship assembly, etc..
