Beading Threads vs. Bead Cords
People often confuse BEAD CORDS and THREADS.
Beading Threads are very thin ribbons, and are meant to be fully covered with beads, thus hidden within your pieces. They are typically waxed with beeswax to keep them from fraying. Threads, once waxed, are actually stronger and more durable than bead cords, but they are unsightly.
Threads are used in both bead weaving and bead stringing projects.
Beading Cords are threads that are braided together, to make them visually attractive. But you don’t wax bead cords — this would make them ugly. So Bead Cords will have problems of fraying and stretching that waxed Threads will not. When Bead Cord is waxed, the exposed waxed cord also picks up dirt and body oils, making it dirty and unsightly, and furthering weakening the cord.
Bead Cords are used for projects where you want the cord to show, like putting knots between beads, or tin cup necklaces where you have a cluster of beads, then a length of cord showing, and then another cluster of beads, then the cord, and so forth.
If you do not want your cord to show, then you would use a waxed Bead Thread or Cable Wire, which are much more durable than Bead Cords.