Gikfun 2 Pin and 3 Pin Vertical Screw Header (Pack of 40pcs) for Arduino PCB Shield EK8251 20PCS 2 Pin Way Vertical Screw Header, 3.5mm 137mil pitch For Arduino PCB Shield 20PCS 3 Pin Way Vertical Screw Header, 3.5mm 137mil pitch For Arduino PCB Shield maximum current rating 10A maximum voltage rating 160v