Our grounded remote bolt connectors are made from top quality copper , which is highly to oxidation and is perfect even in harsh weather conditions. preservative Highly conductive copper-plated brass ground split bolt connectors connect two or more copper wires together without the need for crimping or additional tools. It ensures high mechanical strength, maximum electrical conductivity and low electrical resistance. Wire range: suitable for 6AWG/7AWG/8AWG bare wire. PERFECT FOR: Use split bolt connectors to join copper wires together, ensuring a secure connection. type: TJ-25 Colour:copper Material:copper Package Contents: 10 x Split Bolt Connector Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.