Well, a fork generally has from two to five points, one on the end of each tine. Threads usually have only two points, one on each end ... though one end may be hidden in the wind of the bobbin.
There are many other meanings for "fork" and "thread", but it is not clear, from your question, which you intend. Perhaps something like this
is closer to want you want?
GIYF: search term
fork vs thread
ask about what you don't understand.