U-bolts
U-bolts u-speped me nā kaula i nā kihiʻelua, a hoʻohanaʻia e hoʻoponopono i nā mea cylindrical e like me nā pipes a me nā papa (zq 4321). ʻO nā kiko'ī maʻamau M6-M64, i hanaʻia no ka carbon steel a iʻole stielless steel, me samnivalized a iʻole nā papa ulia paha.