Simbi simbi bhaudhi imhando yepamusoro-simba bhaudhi uye rudzi rweyakajairwa chikamu. Simbi simbi mabhaudhi anonyanya kushandiswa musimbi simbi ouinjiniya kubatanidza kubatana maporesi esimbi mamiriro mahwendefa. Simbi simbi mabhaudhi akapatsanurwa kuita torsional shear mhando yakakwira-simba mabhaudhi uye hombe yakakomberedzwa yepamusoro-simba mabhaudhi. Makuru mahexagonal akakwirira-akasimba mabhaudhi ndeaya epamusoro-simba giredhi rezvakajairwa screws, nepo torsional shear mhando yakakwira-simba mabhaudhi ndiko kusimudzira kwemahombekombe akakwirira akakwira-simba mabhaudhi. Zvekuvaka zvirinani, kuvakwa kwesimbi mamiriro mabhaudhi kunofanira kutanga kwakasimbiswa uyezve pakupedzisira. Zvekutanga kuomesa kwesimbi simbi mabhaudhi, inokanganisa mhando yemagetsi zvipanera kana torque inogadziriswa emagetsi wrenches inodiwa. Iko kusimbisa kwekupedzisira kwesimbi simbi mabhaudhi kune yakaoma zvido. Iko kusimbisa kwekupedzisira kwetorsional shear mhando simbi mamiriro mabhaudhi anofanirwa kushandisa torsional shear mhando yemagetsi wrench, uye yekupedzisira kusimbisa kwetorque mhando simbi mamiriro mabhaudhi anofanirwa kushandisa torque mhando yemagetsi wrench. Iyo torsional shear mhando simbi mamiriro bhaudhi ine bhaudhi, nati, torsional shear mhando yakakwira simba bhaudhi simbi chimiro hombe yakakomberedza bhaudhi uye washer.