A stainless steel turnbuckles is commonly used to adjust the tension between two cables or ropes by rotating the frame, which causes both eye bolts to be screwed in or out simultaneously. Also called rigging screw, tensioner, bottle screw, adjuster, open body turnbuckle, closed body turnbuckle, straining screw, barrel strainer.
Perfect for architectural and marine applications: cable railing, DIY balustrade, landscape, general rigging and horticultural use.