45 cc grounding strap to keel

I have a 45 cc and the grounding strap to the keel has rotted and come apart. Does anyone know what material was.used and as it goes.to a keel bolt what is the torque setting for the bolt? Hauling out next week and would like to get this replaced. Thanks all

Material most likely copper. Torque is typically based on bolt diameter, that said check with Paul at Warren River Boat Works…