Hoʻohana maʻamau ʻia nā kaula uea hao hao i nā noi hoʻopaʻapaʻa e like me nā uea kāne, nā uea kāne, a me nā uwea ʻāina ma luna o nā ʻōnaehana hoʻoili mana a me ka hāʻawi ʻana. Hana ʻia nā kaula hao hao a pau me nā uea kiʻekiʻe. Ua wili ʻia nā uea me ka helicically e hana i ke kaula. ʻO nā kaula maʻamau no nā kaula uea a me nā kaula i hana ʻia i ke kila galvanized. Loaʻa iā ia ka ikaika mechanical kiʻekiʻe, a ʻo kāna hoʻolālā galvanized e hāʻawi iā ia i ke kūpaʻa corrosion kiʻekiʻe.