Turnbuckles are also known as a bottle screw or stretching screw, are used for the adjustment of length or tension of cables and ropes. Turnbuckles are designed in a way to make it easier to add or release tension in a rope or cable, without putting any undue pressure on the other devices used for cable attachment.

This device usually includes two eye bolts which are threaded and screwed on either ends of a metal frame. These eye bolts are joined in such a way that in one the thread is towards left, while in the other it is on the right. The frame can be rotated to adjust the tension, which results in the eye bolts being screwed in and out at the same time, without having to twist the attached cables or eye bolts.

The size of turnbuckles can vary from two inches to twelve inches. The type and size of turnbuckle you require will depend on the application and the amount of weight you want it to bear. Also it should be highly durable and strong, which is why it is made from materials that are corrosion and weather resistant, such as stainless steel.

The usage of turnbuckles can be seen in plenty of applications, primarily in those which require great amount of tension. Aviation, shipping, entertainment, sports are some of the fields where this device is used extensively and serves a number of purposes. In boxing rings it is used as an attachment between ring posts and ring ropes and usually it is covered with a padding to avoid causing any injury to the competitors. In the aviation industry it is used in biplanes for adjusting the tension of structural wires attached to their wings. These are also an integral part of the flight control system. Shipping industry uses this device for tensioning the lashings and rigging of a ship.

Safety with Turnbuckles

Turnbuckles, being an essential part of various crucial applications can prove to be a risk if not used properly. It is highly important that the turnbuckle you are using is of top quality and very strong as yours and other’s safety will depend on the sturdiness of this small device. Also, special attention should be paid while attaching or removing a turnbuckle. Especially while removing it, the rope should not be tight. It is essential to keep it relaxed; otherwise it can even break the rope or cable and lead to nasty consequences.