16M Metric Nylon Flat Washers Essentra Components 16M Metric Nylon Flat Washers feature nylon 6/6 construction and a UL 94V-2 flammability rating. Flat washers help evenly distribute a load of a fastener, such as a nut, while reducing heat and friction during the process of tightening. These washers are resistant to corrosion and most chemicals, making them suitable for numerous environments and industries. Essentra Components 16M Metric Nylon Flat Washers offer a durable, smooth finish and insulate against moisture and electricity.