Ceramic wire connectors (12-pack, small size for 22-14 AWG) are designed for extreme heat resistance, rated for continuous use from 200°F up to a maximum of 1000°F (538°C). Unlike plastic wire nuts that melt, crack, or age, these connectors are made from high-quality, non-conductive ceramic material with no metal coil inside. Instead, a substantial and sharp tapered thread is cast directly into the porcelain, providing a secure, vibration-resistant grip without the risk of loosening or short circuits. The outstanding insulation properties effectively isolate electrical currents between wires, ensuring safe operation in ovens, kilns, heaters, furnaces, water heaters, HVAC equipment, and other high-temperature environments where standard connectors fail. Installation is fast and tool-free: simply align the wires and twist the ceramic nut tight by hand – the deep internal taper allows a secure, insulated connection in seconds. Built to last for prolonged periods without heat or environmental degradation, this 20-pack is a versatile solution for all high-temperature electrical repairs and maintenance