Plain nylon washers with M4 inside diameter, ideal for general insulation and applications involving corrosive substances. * Outer diameter 9mm * Made from nylon 66 material * Natural finish * 0.8mm thickness * Flammability rating UL94V-2 * Supplied in pack of 100 https://elecena.pl/product/27210578/optimas-0110767-m4-plain-nylon-washer-pack-100 2024-11-10 https://elecena.pl/product/27210578/optimas-0110767-m4-plain-nylon-washer-pack-100 2026-07-06