Clips
Metal cage nuts, to clip with front mounting (C 0800 / C 4830 type)
These parts include a trapezal or square nut and are clipped in a rectangular hole on the front face of supporting panel.
Round cage nuts, to be clipped by front mounting (CP and CV type). CV type is with steel cage and nut. CP type is with plastic cage and brass nut.
These parts are clipped in a round hole in the front face of supporting panel. Type CV parts self crimp on the panel during tightening. Type CP parts provide good electric insulation (Plastic cage) and the brass nut makes them insensible to corrosion.
Plastic nuts, to clip with front mounting, and simple plastic nuts
These parts are easily clipped by hand on the front face of supporting panel.They are mostly used with screws for plastic.