Nzungu dzisingapindi mvura dzinoshandiswa zvakanyanya mumashandisirwo akasiyana siyana uye dzinouya muhukuru hwakasiyana kuti isangane nezvinodiwa zvakasiyana. Kunzwisisa zvakajairika kwakakosha pakusarudza uye kushandisa nzungu dzisingapindi mvura.
1. Diameter
Iyo dhayamita yenzungu dzisingapindi mvura ndiyo yakasarudzika. M3, ine dhayamita diki, inowanzoshandiswa mumidziyo midiki kana kuti nzvimbo ishoma, sekubatanidza mukati mumidziyo midiki yemagetsi. M4 uye M5 inoshandiswawo zvakanyanya pakubatanidza zvikamu zviduku zvisingaenderani nemitoro yakakura asi zvinoda kudzivirira mvura. M6 neM8 zvakajairika mumakina akajairwa, chiridzwa, uye zvimwe midziyo, inokwanisa kumirisana nekunetsekana uye torque. M10 neM12 inowanzoshandiswa mumashandisirwo anoda yakakwirira yekubatanidza simba, senge zvikamu zvemotokari uye maindasitiri emidziyo furemu yekubatanidza.
2. Thread Pitch
Mutambo weshinda unotara kumhanya uye kurongeka kwekukurunga pakati pe nati nebhaudhi. Metric waterproof nuts ane shinda dzeshinda dzinoenderana nemadhayamita akasiyana. Iyo thread pitch inokanganisa kusimba kweiyo screwing pakati pe nati nebhaudhi uye kugadzikana kwekubatanidza. Madiki madiki eshinda anobvumira kugadziridzwa kwakakwenenzverwa uye kusimba kwakasimba, uye anowanzo shandiswa mumaapplication anoda kunyatsojeka. Huru dzeshinda dzinobvumira kukurumidza kupuruzira, zvichiita kuti dzikodzere maapplication uko kumhanya kwakakosha.
3. Kureba
Kureba kwenzungu dzisingapindi mvura zvakare chinhu chakakosha. Kureba kwakajairika kunobva pamamirimita mashoma kusvika makumi emamirimita. Kazhinji,-chinangwa chisingapindi mvura nzungu dzinenge dzakaderera. Semuenzaniso, nzungu diki dzisingapindi mvura dzemidziyo yemagetsi dzinogona kunge dziri pakati pe3 ne8 mm kureba. Nekudaro, nzungu dzisingapindi mvura dzakagadzirirwa kutsungirira kushushikana kwakanyanya kana kuda kuwedzera kugadzikana kwekubatanidza dzinogona kusvika 10 kusvika 20 mm kana kutokwira.