Phapang lipakeng tsa "drill tail screws" le "self tapping screws".

Leha li-screw tsa "self tapping" le "drill tails" e le li-fasteners tse kentsoeng ka likhoele, li na le phapang ka chebahalo, sepheo le ts'ebeliso. Taba ea pele, ho ea ka chebahalo, ntlha e ka tlase ea sekoti sa mohatla o tla le mohatla oa ho phunya, o ts'oanang le mohatla o monyane oa ho phunya, o tsejoang ka botsebi e le mohatla oa leloala, athe ntlha e tlase e kentsoeng ea "self tapping" screw ha e na mohatla oa ho phunya, ke khoele e boreleli feela. Taba ea bobeli, ho na le liphapang lits'ebetsong tsa bona, kaha hangata li-screws tsa "self tapping" li sebelisoa ho lisebelisoa tseo e seng tsa tšepe kapa tsa tšepe tse nang le boima bo tlase. Hobane li-self tapping screws li ka phunya, tsa petetsa, le ho tlanya likhoele tse tsamaellanang holim'a thepa e tsitsitseng ka likhoele tsa tsona, tsa etsa hore li lumellane hantle. Li-Drill tail screws li sebelisoa haholo meahong ea tšepe e bobebe, e khonang ho phunyeletsa lipoleiti tse tšesaane tsa tšepe, 'me li na le mefuta e mengata ea ts'ebeliso meahong e fapaneng ea meaho le ea indasteri. Qetellong, tšebeliso e boetse e fapane. Ntlha ea "self tapping screw" e bohale, 'me ha ho na mohatla o phuntsoeng qetellong. Ka hona, pele u lokisa, hoa hlokahala hore u sebelise boro ea motlakase kapa sethunya sa letsoho ho etsa masoba a phuntsoeng pele holim'a ntho, ebe u fafatsa li-screw tsa "self tapping". 'Me screw tail tail e ka sebelisoa neng kapa neng, kae kapa kae hobane mohatla oa eona o tla le mohatla oa ho phunya, o ka phunyeletsoang ka ho toba ka lisebelisoa tse thata tse kang lipoleiti tsa tšepe le patsi ntle le tlhoko ea masoba a phuntsoeng pele. Mohatla oa eona oa ho phunya o ka phunya masoba ka mokhoa o lumellanang nakong ea ts'ebetso ea screwing. Ka kakaretso, ho na le liphapang tse kholo lipakeng tsa li-screws tsa mohatla le li-self tapping screws likarolong tse ngata, 'me likhoebo kapa bareki ba hloka ho khetha ho latela maemo a itseng le litlhoko tsa nnete.

Ts'ebelisong e sebetsang, ho bohlokoa haholo ho khetha mofuta o nepahetseng oa "drill tail screw" kapa "self tapping screw" bakeng sa botsitso le katleho ea ts'ebetso ea ho lokisa. Likhoebo kapa bareki ba ka khetha mefuta e fapaneng ea li-screw ho latela litlhoko le maemo a bona ho fihlela phello e ntle ea ho lokisa.