What would be the point in tinning them?
To keep the strands together?
Use your sidecutters and twist them together. You could have been done with this project by now
Originally Posted by Speedy Petey
That's different. You can use #8THHN up to 50A.
I would not derate the neutral for such a circuit. You can proabaly find #8 solid at a supply house.
You can't use # 8 SOL anymore in conduit, see 310.3 2005 NEC