Bolt
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Mabotolo a hexagon akunja otentha oviika zinc
Boluti: Gawo la makina, chomangira chokhala ndi zigawo ziwiri, mutu ndi skurufu (silinda yokhala ndi ulusi wakunja), ndi nati yokhala ndi dzenje lolowera kuti imangirire zigawo ziwiri zomwe zimatchedwa kulumikizana kwa boluti.