Isishwankathelo, i-channel spring nut iyisisombululo esisebenzayo, esithembekileyo kunye nesisebenzayo sokuqina esilungele ukusetyenziswa kwezicelo. Ukwakhiwa kwayo okuhlala ixesha elide, ukusetyenziswa lula kunye nokuhambelana neenkqubo ezahlukeneyo zenkxaso yeshaneli kwenza kube lukhetho olugqibeleleyo kubakontraki, abafakeli kunye nabaphathi beprojekthi. Xa ukhetha i-castelated spring nut, unokuqiniseka ukuba uthengela imveliso esemgangathweni eya kuhlangana kwaye idlule ukulindela kwakho.