Threadedsimbi barimhando yesimbi yakasimba yakasimba ine yakanakisa mechaniki zvivakwa, inogona kusangana nezvinodiwa zvesimba mukuvaka engineering. Mukuwedzera, pamusoro pebhari yesimbi yakashongedzwa yakanyatsogadziriswa, uye kurwisana kwekuora kuri nani zvakare, iyo inogona kuvimbisa kuti simbi yesimbi haizove yakasvibiswa panguva yekushandiswa kwenguva refu.