Nyenzo: chuma cha kaboni
Daraja: 4.8 / 8.8 / 10.9 / 12.9
Matibabu ya uso: rangi ya asili, oksidi nyeusi, umeme-mabati, moto-kuzamisha mabati, dacromet, nk.
Kiwango: GB, DIN, ISO, nk.
Aina ya uzi: uzi kamili, nusu thread