QUADRIOS 2011C401 yellow solder connectors combine a built-in solder ring and hot-melt adhesive inside a 2:1 heat shrink tube. When heated, the solder melts and flows into the wire strands while the adhesive seals both ends, creating a waterproof, vibration-proof electrical splice.

Application: Strip both wires, insert them from opposite ends until the bare conductors meet under the solder ring, then apply heat with a hot air gun. No soldering iron or crimping tool required.

These connectors are sized for 4.0-6.0 mm² (AWG 12-10) cables, ideal for battery terminals, inverters, and heavy-duty equipment repairs. Each bag contains 10 connectors.