Ring cable lugs - the so-called cable lug contacts - are electrical connections for wiring by means of screw or threaded connections. One end of the ring terminal has a closed or open crimp sleeve to make an electrical connection to the wire. The other end has a ring tongue that is attached to the device with a screw or bolt that goes through the ring.
Flat cable lugs - the so-called flat cable lugs - connect or disconnect individual wires connected by screws or bolts. Their shape resembles a pitchfork or spade, allowing users to easily connect or disconnect electrical connections. Flat cable lugs help you connect wires quickly, because all you have to do to connect or disconnect is unscrew screws and bolts without having to remove them completely.