Ngokubanzi, sisikrufu somthi esinentloko yomnwe, amazinyo angqindilili kunye nokuqina okuqinileyo, kunye nealluminiyam kunye neplastiki.Uhlobo olukhethekileyo lwe-self-tapping screw esetyenziselwa ukuvula imicu kwimingxuma yentsimbi ibizwa ngokuba yimpompo.
I-self tapping screws ye-non-metal okanye i-soft metal, ayifuni ukubetha umngxuma ongezantsi kunye nokucofa;Izikrufu zokuzicofa zijongiwe, ukuze "uzicofe";Izikrufu eziqhelekileyo zisicaba - zinentloko kunye nobukhulu obufanayo.
I-self tapping screw ithi: imingxuma yokubhoboza ngaphandle kwemingxunya, i-screw kunye nomahluko jikelele, intloko ibonakalisiwe, umgama wezinyo mkhulu kakhulu, kwaye i-chip ye-wire tapping ifana nje, ayikwazi ukucofa ngokuthe ngqo kwi-screw in, isinyithi kunye neplastiki ngokuqhelekileyo zisebenzisa le ndlela.
Inokudityaniswa kwizinto eziphathekayo, ngokuxhomekeke kwintambo yayo, iya kudityaniswa nomzimba "itephu - i-drill, icinezele, uxinzelelo" ngaphandle kwentambo ehambelanayo, ukwenzela ukuba isondelelane.