The commonly used thread of silk screen flower is determined according to the size of the flower you want to make, not the same size as a thread.

For example: 22# iron wire such as magnolia, lily and peony;

24# iron wire for roses, tulips and sunflowers;

26# iron wire is used for plum blossom, peach blossom and pansy.

So prepare according to the type you want to do, I hope it will help you.