Izinzipho zokuwela, ezaziwa nangokuthi ama-stud welds noma ama-weld pin, ngama-fasteners akhethekile aklanyelwe izinhlelo zokusebenza lapho izikulufu zendabuko nama-bolts kungenzeka zingahle. Zivame ukusetshenziswa emisebenzini yokubopha insimbi, lapho kudingeka khona isibopho esiqinile, esihlala njalo. Inqubo yokusebenzisa izipikili ze-welding ifaka inqubo yokushisela evumela isipikili ukuthi sihlanganiswe ngqo ku-substrate yensimbi,