An alternative, but the same idea, is to use a small grommet by cutting the grommet in the groove that would sandwich the metal so you end up with 2 small rubber washers. There is a size that just fits in the forend hole and fits snug on the screw. I didn't have any of the washer type roofing nails and neither did the hardware store, so I used half the grommet. It works! Thanks, Stan!