Dziwani zokhazikika zotetezeka komanso zodalirika ndi Metric Slotted Oval Countersunk Head Machine Screws yogwirizana ndi IFI 513 - 1982 miyezo. Zosunthika komanso zolimba, zomangira izi zimapereka kuphatikiza kokhazikika komanso kugwira ntchito kwanthawi yayitali pamapulogalamu osiyanasiyana.
Kumanga Kotetezedwa:Metric Slotted Oval Countersunk Head Machine Screws, yomwe ikukwaniritsa miyezo ya IFI 513 - 1982, imapereka mayankho otetezeka ogwiritsira ntchito zosiyanasiyana. Mapangidwe a mutu wa oval countersunk amalola kuyika kwa flush, kuchepetsa chiopsezo cha kugwedezeka ndi kupereka mapeto oyera.
Ntchito Zosiyanasiyana:Zomangira zamakinazi ndizokhazikika komanso zoyenera kugwiritsidwa ntchito m'mafakitale osiyanasiyana, kuphatikiza zamagalimoto, zomangamanga, ndi zamagetsi. Mapangidwe a slotted drive amathandizira kuyika kosavuta, kumapangitsa kuti magwiridwe antchito apangidwe.
Zomangamanga Zolimba:Zopangidwa kuchokera ku zida zapamwamba kwambiri, zomangira izi zimakhala zolimba komanso zosagwirizana ndi dzimbiri, kuwonetsetsa kuti zimagwira ntchito modalirika ngakhale m'malo ovuta. Miyezo yawo yolondola komanso yokhazikika yopanga imatsimikizira kukhazikika kokhazikika komanso kotetezeka.
Msonkhano Wokhazikika:Mapangidwe a mutu wa oval countersunk amalola zomangira izi kukhala pansi ndi pamwamba, kuonetsetsa kuti pali msonkhano wokhazikika komanso wotetezeka. Izi zimachepetsa chiopsezo cha protrusions ndi kusokoneza, kuwapangitsa kukhala oyenera ntchito zomwe zimafuna kumaliza kosalala.