Sterling Silver Crimp Beads - Sterling Silver 1mm and 2mm Tube Crimp Beads. The 2mm Crimp Beads are our Crimp Bead of choice when using Beading Wire to make a necklace or bracelet. Their longer length and the fact that they are Sterling makes them more maleable and hold better. We use the 1mm Crimp Beads for Illusion Style Necklaces and in small places. Sold in Packages of 100