We strive to provide you with the highest quality product and the best customer experience, if you're not entirely satisfied, please just feel to contact us at any time. The industrial plastic housing of the brass terminal has good insulation properties and is safe to use. Brass terminals are made of high-quality brass material, which is corrosion resistant and Brass binding posts adopt non-slip thread design, which saves labor and speed, and is more convenient for manual installation. Brass binding posts can withstand currents up to 200A, M8 mounting threads are stable and reliable, and the opening size is 12mm / 0.47 inch.