They combine several wires into one secure endpoint using a simple twist-and-cap method. Our Pigtail and Outlet Boxes have been engineered for easy customization, shipment installation and service. Face it, in a box full of wires. A pigtail in electrical wiring is a short wire used to connect multiple wires to a single point or device. By continuing, I agree to the and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted. KEY FEATURES SCREW CLAMP TERMINAL TO PIGTAIL BNC. A large variety of small enclosures: polycarbonate enclosure PK, aluminum enclosure GA, small enclosure KX, carbon steel in the terminal box versions with and without a flange, e-boxes, and bus enclosure. In electrical work, pigtails.