* KT screws imwe mhando yeshinda yakakosha kugadzira kana shinda-kucheka screws emapurasitiki, kunyanya e thermoplastics. Iwo anoshandiswa zvakanyanya muindasitiri yemotokari, zvemagetsi, nezvimwe.
* Zvinhu zviripo: kabhoni simbi, simbi isina tsvina.
* Inowanikwa pamusoro pekurapa: chena zinc yakaiswa, yebhuruu zinc yakaiswa, nickel yakaiswa, dema oxide, nezvimwe.