use a double ended box wrench and get a piece of hex material the same size as the other end of wrench and then attach socket and torque wrench to that. Use nut from a turnbuckle maybe?

 

Use a double ended box wrench and get a piece of hex material the same size as the other end of wrench and then attach socket and torque wrench to that. Use nut from a turnbuckle maybe? Maybe an allen socket that will fit other box end.

 

Thx Garbear, I'll try that. Haven't been able to work on it as it's outside and we've had crappy weather.