National Marker N221788 Zinc Eye Eye Turnbuckle

Product Description

The NATIONAL MARKER N221788 is a 1/2-inch by 17-inch eye-and-eye turnbuckle designed for tensioning and adjusting wire rope, cable, and rod assemblies in rigging and structural applications. The body is hex-shaped aluminum with a zinc finish, providing corrosion resistance and easy wrench engagement. The eyes are steel for added strength at the attachment points. This hardware is installed by riggers, ironworkers, electricians, and general contractors where reliable tension adjustment is required.

This turnbuckle is suited for use in residential and commercial construction, utility work, and industrial rigging setups. The eye-and-eye configuration allows direct connection to hooks, shackles, rings, or anchor points at both ends. The hex body design allows a standard wrench to be used for tightening and adjustment without additional tooling. The zinc finish makes it appropriate for moderate outdoor exposure environments.

Key Features

• Eye-and-eye configuration for direct attachment at both ends
• Hex-shaped aluminum body for wrench engagement during tensioning
• Zinc finish on body for corrosion resistance
• Steel eyes for increased load-bearing strength at connection points
• 1/2-inch body diameter with 17-inch overall take-up length
• Catalog model No. 2170BC series

Compatibility

Designed as a standard eye-and-eye turnbuckle for use with 1/2-inch wire rope, cable, or rod rigging assemblies in general construction and industrial tensioning applications.

Installation Notes

Turnbuckles should be installed by qualified riggers or tradespeople familiar with load tensioning requirements. Always verify working load limits before applying tension and ensure both eye connections are fully seated and secured before loading. Use the hex body with an appropriate wrench to achieve and maintain proper tension. Inspect threads and eyes for damage before each use.

Technical Specifications

• Body Diameter: 1/2 inches
• Overall Length: 17 inches
• End Type: Eye and Eye
• Body Shape: Hex
• Body Material: Aluminum
• Eye Material: Steel
• Finish: Zinc
• Weight: 0.959 pounds
• UPC: 00038613124851

Standard Information

• Brand: NATIONAL MARKER
• Manufacturer Part Number: N221788