Njengesixhumi esibalulekileyo soomatshini, ii-flange bolts ezingama-660 zidlala indima ebalulekileyo kushishino, ulwakhiwo kunye nezinye iinkalo zobunjineli. Ukuqinisekisa ukusebenza kwayo kunye nokhuseleko, kuyimfuneko ukuphumeza ulawulo lomjikelo wobomi (ulawulo lomjikelo wobomi). Eli nqaku liza kwazisa amanqanaba okuvelisa, ukusebenzisa kunye nokugcinwa kwee-flange bolts ezingama-660, ligxile kwindlela yokulawula ngempumelelo ikhonkco ngalinye ukuphucula ukuthembeka kunye nokusebenza kakuhle kwemveliso.