3M Scotchlok MU18-4FB/S terminals are block fork connectors used to create secure and reliable electrical connections. These terminals are designed for stranded copper wires and feature a butted seam barrel for ease of wire entry and a flat tongue with a central opening for mounting around a screw or stud. They are commonly used in industrial applications where secure and durable wire connections are required. The terminals are UL Listed and CSA Certified, ensuring compliance with industry safety standards.