Fork-to-Fork Turnbuckle

The fork-to-fork turnbuckle is a rigging fitting that is reliable and technologically complex in design.

Rigging of this design is widely used for securing complex and bulky loads.

Design features

The distinctive feature of this type of turnbuckle lies in how the fork is fixed. It grips the adjacent fastening element from all sides, which rules out the load slipping out — this is only possible if the fork itself fails.

The turnbuckle design features a U-shaped fork at one end, and a thread at the other end. The tail element of one fork is fitted with a right-hand thread, the other with a left-hand thread. This prevents self-unscrewing during operation and tensioning of the fitting.

Production

The fork is manufactured by hot stamping. The raw material is a bar blank made of 20 structural steel. After stamping, the fork undergoes heat treatment. The turnbuckle consists of a body and two threaded screws fitted with crimping forks and nuts. This type of connection is reliable: the fork firmly secures the wire rope.

The rigging fitting is tested for strength properties. The turnbuckle is used for tensioning, where the retaining element is wire rope. Rigging equipment differs in body design — the tensioner can be open or closed. Due to the large number of design variants, selecting such a turnbuckle requires attention. When choosing a product, you need to consider the thread diameter, the parameters for working with the required load, as well as the length of the screws and body. A properly selected turnbuckle ensures quality and fast execution of construction and installation work.