AISI 316 marine grade stainless steel Turnbuckles, are specifically suited for adjusting the tension and length of stainless steel wire rope, balustrade systems and other tensioning methods. Turnbuckles consists of two (2) threaded AISI 316 grade stainless steel forged Jaw, forged Eye or welded Hook Terminals screwed into each end of a forged stainless steel frame.