Tuercas de bloqueo hexagonales de inserción de nailon autobloqueantes Nylock chapadas en zinc M3 x 0,5 mm 100 un.
Description: Hex head, female threaded inside, Carbon Steel and Zinc Plated surface, anti-loose hex nut. Used with a machine or cap screw for mechanically joining materials together. Used widely for matching screws or bolts.