Ideal 30-3404 Solid #12 Gauge AWG Grounding Pigtails Ground Screws ISO 9001 Pack of 50. Flexible insulated copper, solid wire-green. Solid pigtail lead wires are convenient for device grounding applications. Grounding screw offers a unique thread-forming, hole-finding feature plus combination 5/16 in. hex, #2 Phillips, 1/4 in. slotted and #2 Robertson head. Ensures compliance with NEC standards.