Kufotokozera Kwachidule:

Hexagonal head bolt and screw head (silinda) wokhala ndi zomangira zakunja m'magawo awiri, ndi mtedza womwe umagwiritsidwa ntchito pomangirira mbali ziwiri ndi dzenje, magwiridwe awo akhoza kugawidwa mu 4.8, 6.8, 8.8, 10.9, 12.9, ndi zina zambiri, kuposa Magawo 10, kuphatikiza 8.8 komanso pamwamba pa bolt amapangidwa ndi chitsulo chotsika kwambiri cha kaboni komanso chitsulo cha kaboni chitsulo ndi kutentha (kuzimitsa ndi kutentha), komwe kumadziwika kuti ma bolts amphamvu kwambiri, ena onse amatchedwa mabatani wamba. Dzina Hexagon bawuti Kukula M6, M8, M10, M12 ...