Flower basket screws, also known as orchid screws, rigging, fastening thread buckle, used to bind and tighten the wire rope. The basket screw is used to tighten the wire rope and to adjust the tightness. The flower basket screw is divided into three kinds: cast ma steel, common carbon steel and forging according to the different molding methods. The market is mainly for ordinary carbon steel and forging two, ordinary carbon steel orchid screw is mainly used for non-important occasions static binding stable scene, such as garden windbreak, agricultural shed, etc. . Forged orchid screws are used for lifting and freight binding. Such as the logistics of goods binding, sling connection, steel structure, such as cable-rod connections. The flower basket screw uses the lead screw to carry on the expansion and contraction, achieves the adjustment wire rope's looseness and tightness. Components can be bundled in the component transport, and then installed in the loose correction. The utility model is composed of an adjusting rod, a nut and a pull rod with left and right screw threads, and the adjusting rod is also fixed with an anti-theft and anti-loosening device which is connected with a cover plate, a fixing plate and a guide plate by anti-theft and anti-loosening bolts. It is necessary to use a special sleeve to unscrew the anti-theft bolt, which has good anti-theft effect and is safe and reliable. After disassembling the anti-theft and anti-looseness device, it is not necessary to take it down. The ring guide plate on the device slides along the pull rod, and can be adjusted and operated after moving a distance, so it is convenient to use.