Ecrou hex. haut (h=3d) M6/18 Zn/4pc
Ecrou hex. haut (h=3d) M8/24 Zn/4pc
Ecrou hex. haut (h=3d) M10/30 Zn/4pc
Ecrou hex. haut (h=3d) M12/36 Zn/4pc