731819000000 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 - THREADED ARTICLES : OTHER, 731829000000 under HS Code Others, and 731815950011 under HS Code Others. were the top exported HS Codes by UZMAN MAKINA SAN.VEDIS TIC.LTD.STI. in 2021.