Turnbuckles DIN 1478 (Closed Body, Jaw-Jaw, Eye-Eye, Hook-Eye, Hook-Hook)
DIN 1478 turnbuckles, jaw-jaw, eye-eye, hook-eye, hook-hook. Open and closed body, M16–M20 marking, operating rules.
The DIN 1478 turnbuckle is a fastening mechanism with jaw-jaw end fittings. It is used in construction, for guy wires and suspension systems. The threads on opposite ends of the assembly run in different directions, allowing quick adjustment of the element’s length.
Design features
Jaw turnbuckles have a body with a pair of screws on opposite ends, threaded in different directions, which allows objects secured to the end fittings to be drawn together. Ropes or steel wire ropes are used for this purpose. Jaw turnbuckles include jaw fittings with a through-hole into which a pin is fitted.
The mechanism is simple and reliable, providing secure fixation in operation.
Two body types are manufactured as standard — open and closed. The closed body is used for operation in enclosed spaces.
Marking and selection of turnbuckles
Several variants of fixation elements are produced. To select the right one, determine the rope or cable diameter corresponding to the thread diameter. Turnbuckles are manufactured as standard with lengths differing by more than twofold.
Marking and designation codes are a universal method for determining a product’s characteristics. Turnbuckles are designated with an alphanumeric code, for example M16 or M20.
Operating features
To secure ropes, attach the end fittings to the ropes on both sides and turn the screws until the required tension level is reached. With correct selection of the element, sufficient tension is achieved in under 60 seconds.
To prevent damage or a hazardous situation at the production site, the following recommendations should be observed:
- Make sure the load on the DIN 1478 turnbuckle does not exceed the rated value.
- Do not allow forces directed other than along the axis of the rope.
- Do not allow mechanical impact on the turnbuckle.
Failure to follow these rules may cause deformation of the metal fastening element and create a hazardous situation at the production site. Before use, turnbuckles should be checked for mechanical defects.
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