I-Stud Bolt iyinduku efakwe ngentambo enamantongomane ama-hexagon ama-2 asindayo, ngenkathi i-hex bolt inekhanda nge-nati eyodwa. Amantongomane nekhanda kubili ngesithupha. Ukuhlwitha kwama-bolts kuchazwa ku-ASME B1.1 I-Inch Screw Thress, (i-UN ne-UnLind Thread form). Intambo evame kakhulu yifomu lokulinganisa elinephrofayela ye-V. I-angle efakiwe ingu-60¡Ã. Leli fomu lisetshenziswa kabanzi entanjeni enobunye (UN, UNC, UNC, UNC, UNC, UNC, UNIL, UNGC, CRICT RICTS.