8414308109 under HS Code Others, 7318210009 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 : SPRING WASHERS AND OTHER LOCK WASHERS, and 4016930005 under HS Code Others were the top imported HS Codes by A3 ENGINEERING LLC in 2021.