3M™ Wire Connectors, O/B+BOX, 100 per box, 1000 per case

3M™ "Performance Plus" Wire Connector O/B+BOX, 100 per box, 1000 per case performs a spring action that delivers uniform holding power while connecting the conductors. The spring inside the connector has a durable steel construction with a corrosion-resistant coating. This spring connector offers enough space to accommodate a wide range of solid or stranded copper wires. The fins at the connector surface offer a tight grip so the conductor will tighten down easily. The flexible skirt protects against contact with overstripped wires. Accommodates wires of 0.5 mm² to 2.5 mm².