Angry Fish brand super-strong, braided, 4-strand polyethylene fishing line makes an excellent beading thread. Available in a generous 100m (approx. 108 yards) spool, which represents a much better value than some of the more well-known lines. This thread has limited stretch, high knot strength, superior abrasion resistance, excellent drape and flexibility, and needs no conditioning.
If you’re familiar with Power Pro fishing line this is similar, but even stronger. Available in two sizes: 0.12mm and 0.16mm, to correspond roughly with Size AA and Size D beading threads, and can be used with #10 or #12 beading needle, or ‘Big Eye’ needle.
Standard scissors will generally not cut braided line. Fiskars scissors suitable for this thread can be found here.