My broiler handle has melted off my oven. I purchased a new one and mounted it, it also melted off. Obviously it wasn't mounted correctly and still isn't. I mounted it with the screws going all the way through the door and into the handle. All of the spacers are missing, is this what keeps the heat from transferring from the screws into the plastic, or is there some other trick to properly mounting the handle. My original I tried JB welding to fix, but it didn't take.