Types and Sizes of Beading Thread and Stringing Material
See how a variety of beading and jewelry-making threads and light-duty cords measure up. Easy-to-use chart includes thread diameter in inches and millimeters for nylon, silk, FireLine® and more.
Applications of Stringing Material
Beads with smooth drill holes (amber, coral, etc.)
Silk, polyester or nylon
Beads with abrasive drill holes
FireLine® thread, polyester or nylon
Beads that are metal, large or have large drill holes
*Accu-Flex®, FireLine, *Acculon® or *Tiger Tail™
Ropes or Woven Necklaces
*This is a smooth woven type of wire that is flexible, but will resist cutting or breaking, and is used to string heavy crystal and metal beads. The sharp edges and heavy weight of these types of beads will cut regular threading cord.
Colored American Silk Thickest to thinnest: FFF, FF, F, E only
Silk on Card (white or colored) Thickest to thinnest: 12, 10, 8, 6, 5, 4, 3
Silk Cords and Threads
(Cord and thread sizes are listed smallest to largest.)