Stop in for a cup of coffee

Trying google and the rabbit hole is too big.........................

Solder, I want to solder a 12 gauge wire to an alligator-style clip for the ground for my gas tank. What type of solder and size would I need?

This is the clip I ordered. I want to do this...................

View attachment 1716264305
So the steel fuel line is grounded with an attaching bolt. Then there is a clip on strap that completes the ground circuit.