The phrase "are long threads" is correct and usable in written English.
It can be used when describing the characteristics of threads, such as in textiles, discussions, or online forums.
Example: "In this discussion, the topics are long threads that delve deep into various aspects of the subject."
Alternatives: "consist of lengthy threads" or "feature extended threads".
Barbules in the basal portions of feathers are long, delicate threads and do not bind successive barbs together; consequently, this part of the feather is fluffy.
There are long, manic messageboard threads devoted to comparing photos of me with photos of my fiance's thin, conventionally pretty ex-wife, and dissecting what personality disorder could possibly have caused him to downgrade so egregiously (two conclusions are possible here: I have pissed off a lot of misogynists, and misogynists are the most bored people on the planet).
Capillitial threads are long, hyaline, and branched, measuring 2.4 4 μm thick.
The technique is much the same as weaving, only in place of threads there are long thin strips of hard, though flexible, material.
On the left hand side, the thread (which was the long thread) is now also pulled completely onto the bead.
The next day, there were long lines of people threading through high streets across Britain, hoping to retrieve their cash.
Most importantly, the app now features conversation threading, something that's long been standard in other versions of Outlook.com.com
That being said, blackouts for MLB games are a big of a nightmare (there's a long thread by my colleagues complaining about this internally), and getting a deal like this on Facebook could potentially get people to pop in during the afternoon to watch the games.
As Ibrahim sings: The revolution is a long thread, Easily twisted, hard to stretch.
Whereas the career of Beethoven or Wagner was one long thread of becoming, Stravinsky led a musical life of seemingly disconnected nows.
