Zambia Exports of screws, bolts, nuts, coach screws, screw hocks, rivets, of iron or steel to Burundi was US$55 during 2012, according to the United Nations COMTRADE database on international trade. Zambia Exports of screws, bolts, nuts, coach screws, screw hocks, rivets, of iron or steel to Burundi - data, historical chart and statistics - was last updated on May of 2024.