Taw qhia rau Threaded Fasteners

Threaded fasteners yog siv nyob rau hauv yuav luag txhua hom khoom siv kho tshuab; Yog li ntawd, threaded fastening tshuab yog qhov tseem ceeb rau kev ua kom ntseeg tau ntawm cov tshuab tshuab. Vim lawv txoj kev siv dav, threaded fasteners tau dhau los ua cov khoom siv tau zoo heev. Universal cov qauv-xws li ISO thiab JIS- muab cov ntawv teev npe ntawm qhov chaw (xws li bolts, txiv ntseej, thiab ntxhua khaub ncaws) cais los ntawm qhov ntev (nominal inch, length, head shape, etc.) thiab qib zog. Yog li ntawd, threaded fasteners ntawm txhua qhov tshwj xeeb tau yooj yim nkag tau yooj yim los ntawm kev xaiv lawv los ntawm cov qauv no. Qhov no tau hloov cov threaded fasteners rau hauv cov khoom yooj yim heev uas tuaj yeem "tsim" los ntawm cov txheej txheem ntawm "kev xaiv yooj yim."