Metrosene Thread (22 Items)All purpose, 50 weight, 160 denier polyester thread, 150 meter spool (164 yards). Whether on cotton, synthetics, mixed textiles, linens, or even silk, Metrosene makes for smooth seams. Mettler has re-numbered and renamed all the old article numbers 1161. They are now Article 9161. The old number and color code are listed in the description field.