Li-screws tsa truss head phillips li sebelisoa haholo li-fasteners tse tsejoang ka sebopeho sa tsona se ikhethang sa hlooho, se fanang ka sebaka se seholoanyane bakeng sa botsitso bo ntlafetseng le ho ajoa ha mojaro. Ka lilemo tse ka bang 30 tsa boiphihlelo indastering ea fasteners, feme ea rona e sebetsa ka ho khetheha tlhahisong ea li-screws tsa hlooho ea truss. Re fana ka khetho e kholo ea likhetho mme re fana ka lits'ebeletso tsa ho itlhophisa ho fihlela litlhoko tse khethehileng tsa bareki. Hore na e itlhophisa ho ipapisitsoe le lisampole, lits'oants'o, kapa litlhoko tse ikhethileng joalo ka tse batloang feela kapa tse bobebe, re na le boiphihlelo ba ho fana ka li-screws tsa hlooho tsa truss tsa boleng bo holimo tse etselitsoeng lintlha tsa hau hantle. Ntle le moo, re fana ka lits'ebeletso tse felletseng tsa thekiso ea pele, thekisong, le lits'ebeletso tsa kamora thekiso, tse fanang ka tharollo ea kopano e felletseng bakeng sa bareki ba rona.