A turnbuckle, stretching screw or bottlescrew is a device for adjusting the tension or length of ropes, cables, tie rods, and other tensioning systems. It normally consists of two threaded eye bolts, one screwed into each end of a small metal frame, one with a conventional right-hand thread and the other with a left-hand thread. The tension can be adjusted by rotating the frame, which causes both eye bolts to be screwed in or out simultaneously, without twisting the eye bolts or attached cables.
Ningbo Weifeng Fastener Co., Ltd., established in the year 2003, is a global industry and trade combined company. Our company is specialized in developing, manufacturing, trading and providing services for fasteners and hardware tools.
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