... possilble.The standards about washers like this: Not only DIN125, DIN126, DIN127, DIN128, DIN432, DIN433, DIN434, DIN435, DIN436, DIN440, DIN463, DIN471, DIN472 ... , DIN6797, DIN6798, DIN6904, DIN6905, DIN6907, DIN6908, DIN6916, DIN6917, DIN6918, DIN7349, DIN7980, DIN7989, DIN9021; NFE 25-513----NFE25-515; But also JIS, KS ...