The Halex 20517 3/8" Non-Metallic Twin Screw Clamp Connectors are high-quality metal connectors designed for use with flexible nonmetallic conduits. With a through-hole mounting style and a screw connection type, these silver-colored connectors offer rigid flexibility and are suitable for operating temperatures ranging from -40°C to 35°C. Made in Thailand under the Halex brand, this lot of 75 units is ideal for electrical equipment and supplies applications, providing a secure connection for wire, cable, and conduit installations.