Fine Line Lag Assembly for Stainless Steel 3/16" Wire Rope Cable on Wood Posts 316 Marine Grade Quality - Excellent resistance to corrosion! This assembly has no exposed threads and the swage is internal within the turnbuckle body. Meant for 3/16" diameter wire rope cable on straight inline sections of your rail system Meant for Wood Posts only, great for wood posts with composite sleeves as well This comes as a complete assembly which includes: (1) Turnbuckle Tensioner and (1) Swage Lag End Terminal