Self-Mtedza wothira, womwe umatchedwanso rivet nuts kapena self-clinching nuts, ndi mtundu wa mtedza womwe umagwiritsidwa ntchito pa mbale zoonda kapena zitsulo. Amakhala ozungulira, okhala ndi mano opindika komanso kanjira kolowera mbali imodzi. Mano okhomedwa amakanikizidwa-pabowo lokhazikitsidwa kale muzitsulo zachitsulo. Nthawi zambiri, -m'mimba mwake wa bowo wokhazikitsidwa kale umakhala wocheperako pang'ono kuposa mano okhometsedwa a self-nati wothira. Kupanikizika kumapangitsa mano a self-kugwetsa nati muzitsulo, zomwe zimapangitsa kuti pulasitiki ikhale yozungulira{10}pabowo. Zinthu zopundukazo zimakakamizika kulowa munjira yolowera, kupangitsa kutsekeka.
Kapangidwe kamene kamapanga-mtedza wodzipha ndi wofanana ndi zomangira zina. Zopangira zimayendetsedwa ndi screwdriver, pomwe mtedza umayendetsedwa ndi dalaivala wa mtedza. Tiyeni tifotokoze momwe mungapangire mtedza-wokha.
1. Choyamba, dziwani zida za mtedza wokha. Izi zimatithandiza kudziwa zinthu zoyenera ndi zinthu zoti tigwiritse ntchito popanga. Tikadziwa zakuthupi ndi zakuthupi, titha kugula screw ndi waya.
2. Dziwani tsatanetsatane ndi mtundu wa mtedza wokhawokha-ndikuwona kukula kwake ndi kutalika kwake. Izi zitithandiza kudziwa screw yoyenera ndi kukula kwa waya.
3. Tikazindikira zakuthupi, zakuthupi, kukula, ndi mtundu, tiyenera kuwona ngati ndi mtedza womwe umagwiritsidwa ntchito kwambiri-. Ngati ndi choncho, fakitaleyo idzakhala ndi nkhungu yofanana nayo. Ngati sichoncho, kapena{4}}chinthucho sichofanana, tifunika kuyitanitsa nkhungu.
4. Chilichonse chikakonzedwa, mawonekedwe a mtedza wokhawokha-mawonekedwe ake-amakhomeredwa pogwiritsa ntchito makina okhomerera mtedza.
5. Akakhomerera, amakhomeredwa pogwiritsa ntchito makina okhomerera mtedza.
6. Pambuyo pojambula ulusi, electroplating ikuchitika. Stainless steel self-mtedza wa clinching sufuna electroplating; amangofunika kuyeretsedwa. Pakupanga mitundu ina, mtedzawo uyenera kuyikidwa pamalo opangira ma electroplating.