67 grill mounting stud hacks???

Wondering if you could just file the broken end flat, butt weld on another bolt end-to-end, then cut off the head to the correct length? Not a welder, so pardon me if this is impractical. I was thinking these studs don’t take a lot of stress, and the smart play is to use nylon (not Nylock) nuts that won’t rust and get stuck, and these won’t take much torque anyway.