Savage Nomenclature

Does anybody understand Savage's nomenclature? Can't really figure all of it out, even on their website. I was looking at these rifles:
•11/111 BTH
•11/111 FCNS
•11/111 FHNS

In the first one, I believe the TH means thumbhole, and in the last two, the S means synthetic stock. I think SS in the designation means stainless steel, as all Weather Warriors contain it. I have no idea on the B in the first or the FCN and FHN in the others.
Any ideas?

B = laminated stock.
F = synthetic stock
C = detachable magazine
NS = no fixed sights

So FCNS is a synthetic stock with a detachable magazine and no fixed sights. You are right with TH means thumb hole and SS means stainless steel. Also L means left handed.

Well said!

Thanks for the definitive answer; some of them were obvious, others, not so much.