Set of 150 bolt heads. Need to "spice-up" a door, drawers, or other set pieces? Try gluing on these decorative bolt heads (Can use GOOP, Shoe-Goo, or E-6000), to make the appearance of something that's bolted together. These bolt heads are cast out of resin and can be affixed to any surface to add that touch of realistic detail. approx. actual size is .74 inches diameter each.