The sewing machine can’t do a backstitch with ... with the other thread only through the holes made by the needle. The upper thread comes from a spool on the top of the machine while the lower ...

Some machines come with several spool pins for various types of thread spools and for decorative or twin-needle sewing. Spool pins can be horizontal or vertical, but horizontal ones provide ...

We recommend using needles with a 120/20 eye to ensure ... The strongest type of thread for sewing machine is nylon thread. It is a synthetic thread that is known for its strength and durability.