Abstract: An adapter for use on a sewing machine which is equipped with first and second spool pins permits the machine to operate with non-conventional spools such as plastic or cardboard tube spools, small conical base spools, and large spools having a large bore therethrough. A yoke is rotatably mounted on a stabilizing bar which in turn is mounted on the spool pins. The yoke supports first and second mounting fins. A rod is hingedly coupled to one of the mounting fins and is capable of assuming stable horizontal or vertical positions. Plastic or cardboard tube spools may be mounted on the rod when in a horizontal position. The yoke is then adjusted so as to minimize the distance between the point the thread comes off the spool and the first thread guide on the machine. Larger spools may be mounted on the first mounting fin or, when the rod is in a vertical position, on the second mounting fin.