I tried that same wide rubberband today around a collar type screw holding a light switch in the headpiece of my White sewing machine. It was stuck tight and neither hubby nor I could get it to budge even after Liquid Wrench. I didn't want to scar it up with a wrench so I wrapped it with a rubberband and carefully used a wrench watching it all the while to be sure it was actually moving. It worked! Thanks for the idea!