Zomangamanga ndizofunika kwambiri pakupanga makina ndi uinjiniya, zomwe zimagwiritsidwa ntchito makamaka kulumikiza ndi kuteteza zigawo ziwiri kapena zingapo, kuonetsetsa kukhazikika kwadongosolo komanso kudalirika. Amabwera m'mitundu yosiyanasiyana ndipo amagwiritsidwa ntchito kwambiri m'magawo ofunikira, kuphatikiza kupanga mafakitale, zomangamanga, magalimoto, ndi ndege.
Mwamadongosolo, zomangira nthawi zambiri zimakhala ndi mutu ndi shank, zomwe zimakhazikika kudzera mu ulusi kapena zida zina zamakina. Zomangira zofala kwambiri ndi ma bolts, zomangira, mtedza, ma washer, ndi ma rivets. Maboti ndi mtedza zimagwiritsidwa ntchito limodzi, zomwe zimafunika-zibowo zobowola kale m'magawo olumikiza ndikumangitsa mtedza kuti ulumikizane. Zokolobora zitha kukulungidwa mu -mabowo okhala ndi ulusi kapena muzinthu, kuchotseratu kufunikira kwa mtedza wina. Otsuka amagawira kupanikizika kuti ateteze kumasula kapena kuwonongeka kwa malo olumikizira. Ma Rivets, omwe amatetezedwa mopindika, ndi oyenera kulumikizana kosatha,{7}}osachotsedwa.
Kusankhidwa kwa zinthu zomangira kumakhudza mwachindunji magwiridwe antchito awo komanso ntchito zomwe zikugwiritsidwa ntchito. Zomangira zachitsulo za kaboni wamba zimapereka mtengo wotsika komanso mphamvu zolimbitsa thupi, zomwe zimawapangitsa kuti azigwiritsidwa ntchito kwambiri m'mafakitale. Zomangira zitsulo zosapanga dzimbiri zimapereka kukana kwa dzimbiri kwabwino kwambiri ndipo ndizoyenera kugwiritsidwa ntchito m'malo achinyezi kapena owononga mankhwala. Zomangira zachitsulo kapena titaniyamu zimagwiritsidwa ntchito m'malo okwera-amphamvu, okwera{4}}pakutentha kwambiri kapena panjira yovuta kwambiri monga zakuthambo. Zochizira zapamtunda monga galvanizing, phosphating, kapena zokutira za Dacromet zitha kupititsa patsogolo kukana kwa dzimbiri ndi moyo wantchito wa zomangira.
Pakupanga mafakitale, kukhazikika kwa fastener ndikofunikira. Miyezo yapadziko lonse lapansi (monga ISO), miyezo yadziko (monga GB ndi ANSI), ndi miyezo yamakampani imatsimikizira kusinthasintha komanso kusinthasintha kwa zomangira, kuchepetsa kwambiri mtengo wamapangidwe ndi kukonza. Popanga kupanga mwanzeru, umisiri watsopano wa fastener, monga-mphamvu, kudzitsekera{3}}kudzitsekera, ndi wopepuka, zikukula, zomwe zikupititsa patsogolo ntchito{4}}zopanga zida zapamwamba.
Monga "ulalo" wamakina olumikizira, zomangira, ngakhale zazing'ono, ndizofunikira, ndipo kudalirika kwawo kumakhudzana mwachindunji ndi magwiridwe antchito otetezeka a zida. M'tsogolomu, ndikupita patsogolo kwa sayansi ndi uinjiniya, ma fasteners apitiliza kupititsa patsogolo magwiridwe antchito komanso aluntha, ndikupereka chithandizo cholimba chaukadaulo pamafakitale osiyanasiyana.
