Welding Cable Connector CC40/LC-40 Male & Female Set 1/0-2/0 Twist Lock The advanced design of this cable connectors offers many advantages over older styles. Metal parts are precision machined from heavy, specially shaped brass extrusion. Cam action design of male half connector pulls the two halves tightly together. LC-40 Single Oval-Point Screw, 350AMP, No. 1/0 thru No. 2/0 (50-70mm²)