What are turnbuckles in the world of rigging?

Turnbuckles, also known as bottle screws or rigging screws, are mechanical fasteners used in a wide range of industries. They are used to apply tension and adjust the length of tie-rods, cables and other tensioning systems.

They consist of two threaded eye bolts, one with a left-hand thread and the other with a right-hand thread, that can be screwed into each other to facilitate adjustment of the lengths without having to disconnect them. Are typically made from stainless steel for maximum corrosion resistance, but they can also be made from galvanized steel or brass. The most common type consists of an externally threaded body with swivel eyes at either end.

What industries depend on turnbuckles?

Turnbuckles are commonly used in a variety of industries, including marine and industrial rigging, aircraft manufacturing, aerospace engineering, construction projects and sign-making. They are essential for creating tensioning systems to hold together components that need to be securely fastened or adjusted.

In marine applications, they are most often used in sailboat rigging to adjust the lengths of masts and sails. In the sign industry, turnbuckles are often used to secure large banners or signs between two posts. Industrial applications include structures such as scaffolding or cranes where turnbuckles can be used to reduce vibration and increase safety by providing an adjustable component that holds everything securely in place.

Key benefits at a glance:

  • Easily tension and adjust the length of tie-rods, cables and other tensioning systems.
  • Can be used for a variety of industries, including marine and industrial rigging, aircraft manufacturing, aerospace engineering, construction projects and sign-making.
  • The most common type is made from stainless steel for maximum corrosion resistance.
  • Industrial applications include structures such as scaffolding or cranes where turnbuckles can reduce vibration and increase safety by providing an adjustable component that holds everything securely in place.

Galvanized steel or stainless steel?

What’s best? Well, it depends entirely on your needs. Galvanised steel is less expensive than stainless steel and offers good corrosion resistance. However, it may lack the strength of stainless steel and is not suitable for use in marine environments or where high levels of moisture are present. Stainless steel has superior corrosion resistance and strength, making it ideal for a wide range of applications but at a higher cost. Ultimately, the choice will depend on your budget as well as the environment you need to use your turnbuckles in.

Whatever option you choose, make sure that you get quality components from an established supplier that can meet all your requirements. High-quality turnbuckles can last for years with proper care and maintenance. It pays to invest in reliable equipment to ensure the safety of your crew and project.