Ko te Z-ERG-20-100s e tautoko ana i te hurihanga mutunga kore me te hurihanga whanaunga, kaore he mowhiti pahekeheke, he iti te utu tiaki, ko te 20mm te katoa, ko te tango i te hoahoa tuku motuhake me te taraiwa i nga utu algorithm, ko te kaha o te awhi he 30-100N ka taea te whakarite.