I-Flange enemicu ibizwa nangokuthi i-screwed flange noma i-screwed-on flange.lesi sitayela sinentambo ngaphakathi kwe-flange bore ehambisana nentambo yesilisa ehambisanayo epayipini noma ukufaka.Lolu hlobo lwe-flange lusetshenziswa lapho ukushisela kungeyona inketho.I-flange enemicu isetshenziswa kakhulu ekufakweni kwengcindezi ephansi namapayipi amancane (kufika ku-4″ okuzisholo).