A closed body turnbuckle, as the name implies, has a closed or sealed body construction. It typically consists of two end fittings, a threaded rod, and a tubular body enclosing the rod. The end fittings are often eye bolts, eye nuts, or hooks that allow for easy attachment to ropes, cables, or other tensioning elements.
The closed body design offers several advantages compared to open body turnbuckles. It provides additional protection to the internal threads and mechanisms, shielding them from external elements such as dirt, debris, and corrosion. The closed body construction also enhances the overall strength and durability of the turnbuckle.