What Is a Turnbuckle Used For?

A turnbuckle is a tensioning device used to tighten, align, or adjust the tension in wire rope, cable, chain, or other rigging components. By rotating the turnbuckle body, the attached threaded ends move inward or outward, allowing precise tension adjustment.

Turnbuckles are commonly used in rigging, construction, marine applications, structural work, fencing, and industrial installations.

How Does a Turnbuckle Work?

A typical turnbuckle has a threaded body with two end fittings. One end has right-hand threads and the other has left-hand threads.

When the center body is rotated, both ends move simultaneously:

• Turn one direction: Increases tension
• Turn the opposite direction: Decreases tension
• Adjustable design: Allows controlled tensioning without removing the connected components

What Are Turnbuckles Used For?

Turnbuckles are used to tighten and adjust tension in a connection. Common uses include:

• Tensioning wire rope and cable
• Adjusting chain or rigging assemblies
• Marine and boat rigging - using Stainless Steel turnbuckles!
• Structural bracing
• Guardrails and cable railings
• Fencing and agricultural applications
• Stage and event rigging

The Most Common Turnbuckle End Fittings

Turnbuckles are available with different end configurations depending on the application. Common options include:

• Eye & Eye – For connections using shackles, hooks, or other hardware
• Hook & Eye – Provides a quick connection where appropriate
• Jaw & Jaw – Common in marine and architectural cable applications
• Jaw & Eye – Combines two different connection styles

Are Turnbuckles Used for Lifting?

Not all turnbuckles are designed or rated for lifting. A turnbuckle should only be used for lifting or load-bearing applications when the manufacturer specifically rates it for that purpose and provides an appropriate Working Load Limit (WLL).

Standard tensioning turnbuckles should not automatically be treated as lifting hardware.

Choosing the Right Turnbuckle

When selecting a turnbuckle, consider:

• Required Working Load Limit (WLL)
• Overall size and adjustment range
• End fitting configuration
• Thread size
• Material and finish
• Application and environment
• Whether the turnbuckle is rated for lifting or tensioning only

The Bottom Line

A turnbuckle is primarily used to create and adjust tension in a rigging or structural system. The correct turnbuckle depends on the required capacity, connection type, adjustment range, and application.