Adafruit product 641 Ideal for any wearable/e-textile project. It also has fairly low resistivity, 10 ohms per foot so you can use it to drive LEDs and other electronic components that use under 100mA. Because it is made of stainless steel fiber, it will not oxidize like silver does: your projects will not 'stop working' Because of oxidation after a few months and its safe to wash. Comes in a small metal (or plastic) bobbin with 18 meters/60 feet wound on.
Adafruit Stainless Medium Conductive Thread - 3 Ply - 18 Meter/60 ft
Adafruit Stainless Thin Conductive Thread - 2 Ply - 23 Meter/76 ft
SparkFun Education - Kits and Materials - Conductive Thread
Stainless 2 Ply Thin Conductive Thread
Conductive Thread - 60g (Stainless Steel) - DEV-11791 - SparkFun
Conductive Sewing Thread Wearable Stainless Thin
Conductive Thread
After months of searching, we finally have what we consider to be the ultimate conductive thread. It's thin, strong, smooth, and made completely of
Adafruit Stainless Thin Conductive Thread - 2 Ply - 23 Meter/76 ft
DFRobot Conductive Stainless Thread (9Ω) - RobotShop
Conductive Sewing Thread Wearable Stainless Thin
Introduction This is a smooth stainless steel fiber conductive sewing thread. It features small resistance, good thermal conductivity, high melting point and high-temperature resistance. One roll has 5m sewing thread, and about 7Ωper 1m. The diameter of the wire is 0.5mm. It can be used for making touchscreen gloves, anti-static clothing, wearable electronic equipment, anti-static brush, driving LED and other small current electronic components.
Conductive Stainless Thread (9Ω)
Conductive Material Pack/Sewing Thread/Cloth Fabric/Tape - DFRobot
Conductive Stainless Steel Sewing Thread 2Ω - DFRobot
Conductive Material Pack/Sewing Thread/Cloth Fabric/Tape - DFRobot