Ecuador Exports of screws, bolts, nuts, coach screws, screw hocks, rivets, of iron or steel to Vietnam was US$14 during 2016, according to the United Nations COMTRADE database on international trade. Ecuador Exports of screws, bolts, nuts, coach screws, screw hocks, rivets, of iron or steel to Vietnam - data, historical chart and statistics - was last updated on May of 2024.