1. Imiyoboro ku bizwi cyane nk amenyo yizina rinini ryurudodo; imigozi ifite imigozi kuruhande rwumugozi; kugirango ukoreshe imashini cyangwa imigozi kugirango uhindure imigozi kugirango ikomere cyangwa irekure umutwe munini kumutwe (screw); kugirango ukoreshwe ufatanije na mashini ya mashini, hagati yumwobo hamwe nududodo, twacometse mumigozi iburasirazuba kugirango bita cap cap (nut). Gukoresha imigozi yimbaho (mubisanzwe bikoreshwa mugukora ibiti, intera yumugozi ni ngari, ifite icyerekezo), imashini yikubitaho (ahanini ikoreshwa muguhuza ibiti, plastike cyangwa urupapuro, nibindi) ntibisabwa gukoresha ibinyomoro.
2. Imiyoboro ku bizwi cyane nk'amenyo y'izina rinini ry'urudodo; imigozi ifite imigozi kuruhande rwumugozi; kugirango ukoreshe imashini cyangwa imigozi kugirango uhindure imigozi kugirango ikomere cyangwa irekure umutwe munini kumutwe (screw); kugirango ukoreshe imashini ya mashini.