Metric Lock Nuts onse ali ndi mawonekedwe omwe amapanga "kutseka" kosakhazikika.Mtedza Wokhalapo wa Torque Lock umadalira kupindika kwa ulusi ndipo uyenera kumenyedwa ndikuzimitsa;sali mankhwala komanso kutentha kocheperako ngati Nayiloni Insert Lock Nuts koma kugwiritsanso ntchito kumakhalabe kochepa.