Bronze Transformer Tank grounding Connectors #BronzeTransformer #TankgroundingConnectors The ground connectors feature a ½ to 13 stud thread size that fits all standard EEI-NRMA distribution transformers. The ground connectors can be used in both vertically and horizontally directed cable applications. Available conductor range: 2/0 Str. to 8 Sol. and 1 Str. to 10 Sol. Tin-plated connectors are available.