Make Sure You Understand Thread Sizes
Before you buy crochet thread, it’s important to understand all about it. The biggest thing to know is how to choose the right thread size.
Bigger is smaller. With yarn, the bigger the number, the thicker the yarn; the opposite is true with thread. With crochet thread, a size five is thicker than a size 30. If you want to work with crochet thread but you aren’t very used to it, you’ll want to start with a thicker thread, which means lower numbers.
Yarn weights are numbered from zero to seven. Zero is the thinnest, and seven is “jumbo.” This is important to know because a yarn that is labeled “0” is a lace weight or fingering weight yarn but it is also comparable in thickness to some of the thicker thread weights. So, if you’re at a yarn store that doesn’t have a specific section for thread, look for fingering weight yarn instead.
Figure Out What Fiber You Need
The most common fiber for crochet thread is cotton, and therefore that is what you are going to find most easily. If you are seeking basic cotton thread then you should be able to find it anywhere that’s selling yarn. However, there are also other types of crochet thread, and those may be tougher to find. Acrylic, nylon, metallic, and silk threads are options that many people seek for a cotton-alternative in crochet. It is often easier to find these alternatives online than in stores, where cotton will prevail.