NYLON WASHERS FORM A FLAT PLASTIC WASHER M5,M6,M8,M10,M12,M14,M16,M20.
M5, M6, M8, M10, M12, M16, M20, Nylon Flat Plastic Washers DIN 125. washers are the standard form A pattern (most common). Stated sizes (M ) are the bolt size which the washers fit; Hence the hole sizes are slightly larger to allow clearance.