Lilemong tsa morao tjena, li-screws tse ikatisang li atile haholo mererong ea kaho ea lefats'e le ea kaho ea tšepe. Bokhoni ba bona ba ho cheka le ho tiisa ts'ebetsong e le 'ngoe bo ntlafatsa haholo ts'ebetso ea ho kenya le ho fokotsa litšenyehelo tsa basebetsi.
Meahong e meholo-e kholo le meahong ea liindasteri, borakonteraka ba khetha li-screw tse nang le libaka tsa ho cheka tse tsitsitseng le tse sa jeng haholo. Likarolo tsena li netefatsa ts'ebetso ea nako e telele{2}} libakeng tse thata joalo ka libaka tse lebopong la leoatle le libaka tsa indasteri.
Baetsi ba arabela tlhokong ea 'maraka ka ho ntlafatsa geometry ea drill tail, ho ntlafatsa mekhoa ea ho phekola mocheso, le ho ntlafatsa mekhoa ea ho roala e kang Ruspert le zinc{0}}aluminium. Litlhahiso tsena li ntlafatsa lebelo la ho cheka, matla a mojaro, le ho hanyetsa ho bola.
Ha kaho ea lefats'e e ntse e tsoela pele ho hola, li-screws tsa boithaopo li lebelletsoe ho bapala karolo ea bohlokoa haholo lits'ebetsong tsa sejoale-joale tsa ho tiisa. Tlhokahalo ea boholo bo ikhethileng le litlhaloso tse phahameng- tsa ts'ebetso e kanna ea eketseha, haholo mebarakeng e ntseng e tsoela pele.
