The Easy-Twist TOP-M-D 15-Count Pack of Medium Ceramic Wire Connectors are designed for use on wires in the 22-10 AWG size range. The simple one-piece ceramic design has a maximum working temperature of 1000ÃÅ¡ Fahrenheit to join wires in extreme high-heat applications. The body shape features threads molded directly into the interior surface to reliably grip wires and an ergonomically ribbed exterior that is easy to twist. Specially designed for industrial situations including appliances, high-powered light fixtures or heaters.