7318220009 under HS Code SCREWS, BOLTS, NUTS, COACH-SCREWS, SCREW HOOKS, RIVETS, COTTERS, COTTER-PINS, WASHERS (INCLUDING SPRING WASHERS) AND SIMILAR ARTICLES, OF IRON OR STEEL - NON-THREADED ARTICLES : OTHER WASHERS, 7326909807 under HS Code Others, and 7318156900 under HS Code Others. were the top exported HS Codes by XILEM RUS LLC in 2021.