Copper Terminal Ground Bar Kit with Screws Included and Pre-Inserted - 12 Inch UL Listed piece of 12 inch long copper grounding bar The bar is approximately 12mm wide (.48") x 8.75mm (.35") tall. Grounding slots are tear dropped shaped on approximately 10mm (.4") centers All lug screws are included and pre-inserted into the ground bar Screws accept wires 14-6 AWG