This metal cap can be glued to Crystal Pearls (art. 5810, art. 5818) or Beads (art. 5003, art. 5028) using an adhesive such as the Swarovski Crystal Glue CG 500 (A+B). Please follow the whole gluing process (i.e., cleaning, mixing, dosing, setting, curing) carefully. When the glue is dispensed onto the metal part, make sure that the entire surface of the pin and the base part is covered with the adhesive.