This #4 tube crimp bead has an inside diameter of 2.5mm. Crimp beads are used with all beading wire to secure the start and finish of the strand.
Use these tube crimps with wire/cord diameters .66m -.9mm or .026" - .036".
Thread through the crimp bead, around the clasp loop, back through the crimp bead and draw the beading wire taut. Then close the crimp bead flat with needle-nose pliers or create a more rounded look with crimp pliers.
450 crimp tubes per 20 gram package Outside Diameter: 2.5mm (.098 in) Inside Diameter: 2mm Gold Plated over Copper (58.2%) and Zinc (41.8% ) Crimp Tubes #4