Beads on this page easily fit 1mm cord and 16-gauge hat pin wire.
Most also work with 1.5mm cording. (Natural-material cording varies in size a bit.)
Many also fit onto 1/16" rivets and eyelets. 1/16" = 1.59mm, so to find beads that work as rivet (or eyelet) accents, look for beads that have a hole at least 1.6mm in diameter. (Also, many of the beads on this page are made of brass, so even if the hole is a little small, it can easily be punched a little larger with the punch side of the Crafted Findings' riveting tool, and then it can be used as a rivet accent.)
All our beads list their normal hole size (or range). Click any item's name or image for more details.