Flange Head Bolt ndi bolt wophatikizidwa wokhala ndi mutu wamakona awiri ndi flange (gasket pansi pa hexagon ndi cholumikizira cha hexagonal) ndi wononga (silinda wokhala ndi ulusi wakunja). Lumikizani magawo awiriwo.
Kulumikizana kotereku kumatchedwa kulumikiza kolimba.Ngati mtedzawo sunatulutsidwe ku bolt, magawo awiriwo amatha kupatulidwanso, ndiye kulumikiza kwa bolt ndikulumikiza kotheka.