Thread is M8. All 316 stainless steel A4. Thread is M6. Thread is M5. S is 8mm (hook gap). S is 9mm (hook gap). S is 11mm (hook gap). What you get.
-M10 304 Stainless Steel Turnbuckle hook and eye, Strong Bearing Capacity
M4 M5 M6 M8 M10 Stainless Steel Turnbuckle hook and eye Straining Rigging Screw
Stainless Steel Turnbuckle Hook Eye - M10 304, Strong Load Capacity
Stainless Steel 304 Hook & Hook Turnbuckle Wire Rope Tension Pack Of 1
Stainless Steel Turnbuckle Wire Rope Tensioner hook and
