Iyo loose screw inotora dhizaini yekuwedzera diki dhayamita screw. Neiyi diki dhayamita screw, screws inogona kusungirirwa kune connector, kuve nechokwadi kuti haidonhe nyore nyore. Kusiyana neyakajairwa screws, iyo yakasununguka screw haina kutsamira pane chimiro che screw pachayo kudzivirira kudonha, asi inoona basa rekudzivirira kudonha kuburikidza nekugadzirisa mating nechikamu chakabatana.
Kana mascrews akaiswa, dhayamita diki screw inodimburwa pamwe chete nemaburi ekukwira echimedu chakabatanidzwa kuti chigadzire kubatana kwakasimba. Iyi dhizaini inowedzera zvakanyanya kusimba uye kuvimbika kwekubatana, kungave kuri pasi pekudengenyeka kwekunze kana mitoro inorema.