Anomaly,
They are fine turnbuckles. Johnson
Marine also makes good
hardware, as does Navtec.
Rigging Only has great prices on quality
hardware, and they're very knowledgeable, friendly and willing to answer questions and help you with
rigging questions.
When we rerigged, we purchased all of our wire and terminals from them; we didn't need turnbuckles though. You may also keep your eye on ebay - Merriman and Wilcox-Critten
bronze turnbuckles show up in lots there for great prices, too.
Cheers,
Aaron N.