Usually, a turnbuckle pair for tightening the rigging is referred to as a basket screw. But in fact, the turnbuckle also refers to a special screw pair that has slots on each opposite side of one end of the nut, drills holes in the bolt head, tightens the nut, aligns the holes and slots, and inserts an opening to prevent the nut from loosening. The turnbuckle uses thread extension to adjust the tightness of steel wire ropes or other fastening ropes. In other operations, such as component transportation and cargo fastening, it plays a role in correcting looseness. Usually,turnbuckle consist of adjustable levers with left and right spiral patterns, as well as nuts and pull rods.

The turnbuckles are composed of adjustable levers with left and right spiral patterns, as well as nuts and pull rods. During production and development, in order to achieve anti-theft and anti loosening, fixed plates, cover plates, guide plates, etc. are usually fixed on the adjustment rod, which are connected to the anti-theft and anti loosening bolts as a whole. In this way, only by using the matching sleeve can the anti-theft bolt be easily loosened during use. It not only increases safety performance, but also enables the screw buckle to operate safely. After the anti-theft and anti loosening device is removed, there is no need to take it off and store it separately. Simply use a ring guide plate to slide along the pull rod and move it for a certain distance, which is both convenient and can ensure the trouble of disorderly storage and loss. In addition, with its simple structure, convenient processing, and low cost, it is widely used in various construction teams.

The turnbuckle is cast from malleable steel. Malleable steel turnbuckle is an ideal choice for heavy industry, retail industry, and general industrial applications.

When calculating the rated tension of the screw buckle, it should be calculated based on the relevant tension of its steel tie rod. That is, the rated tension of the screw buckle should be calculated based on the specifications of the pull rod that is one level smaller than its specifications. Common lifting rod flanges include M22, M27, M30, M32, etc. Other customized turnbuckles should be calculated based on the relevant material and model. Common screw buckle materials include Q235 steel, 45 # steel, 40Cr, as well as Q345, 35CrMoA and other materials.