Tuerca de tornillo de acero inoxidable 304 520 piezas, juego de tornillos de cabeza hexagonal M3 M4 M5 M6
M2 nuts 120pcs M3 nuts 80pcs M4 nuts 60pcs. Purpose: Mainly used for fastening connection of aluminum profiles, such as square multi slot aluminum profiles between fastening connection. Material: 304 stainless steel.