Tšebeliso ea li-screws bakeng sa phetiso e na le nalane e batlang e le khuts'oane. Li-screw tsa setso li 'nile tsa hlokofatsoa ke boemo bo bobe le ho fokola. E bile ka 1898 moo batho ba ileng ba leka ho ntlafatsa litaba tsena pele ka ho kenya libolo tsa tšepe lipakeng tsa nate le screw, ho nkela khohlano e thellang ka ho khohlano. Ka 1940, li-screws tsa bolo li ile tsa kenyeletsoa tsamaisong ea likoloi, phetoho e kholo ts'ebetsong ea tsona, 'me butle-butle tsa nkela sekoti sa setso sa ACME sebaka. Lilemong tsa morao tjena, li-screws tsa bolo li fetohile tse ling tsa likarolo tse sebelisoang haholo indastering.
