National Marker N221739 Eye Eye Turnbuckle Zinc Aluminum

Product Description

The NATIONAL MARKER N221739 is a 7/32-inch by 6-1/2-inch eye and eye turnbuckle designed for tensioning and adjusting the length of cables, ropes, and tie rods. The body is hex-shaped for wrench engagement, manufactured from aluminum with a zinc finish for corrosion resistance. The eyes are steel for added load-bearing strength. This turnbuckle is part of the 2170BC catalog series and is sold individually. It is a standard hardware component installed by riggers, contractors, and maintenance trades in light-duty tensioning applications.

This turnbuckle suits residential and light commercial applications where cable or rod assemblies require periodic length adjustment or tensioning. The eye-and-eye configuration allows attachment to clevis pins, shackles, or anchor bolts at both ends. The hex body profile allows a wrench to be used for precise adjustment without over-rotating the assembly. Typical installations include wire rope bracing, guy wire systems, and tensioned support lines.

Key Features

• Eye and eye configuration for dual-end attachment to pins, shackles, or anchor points
• Hex-shaped aluminum body allows wrench engagement for controlled tensioning
• Zinc finish provides corrosion resistance for exposed or outdoor installations
• Steel eyes deliver added tensile strength at the connection points
• Part of the 2170BC catalog series for straightforward replacement sourcing

Compatibility

Designed as an OEM-style replacement or direct-install eye and eye turnbuckle for light-duty cable and rod tensioning assemblies requiring a 7/32-inch thread diameter and 6-1/2-inch body length.

Installation Notes

Installation is typically performed by riggers, maintenance technicians, or contractors using standard hand tools. Before adjusting or replacing a turnbuckle in a tensioned system, relieve load from the assembly to prevent sudden release. Thread both eyes evenly onto the body to maintain balanced load distribution and avoid cross-threading. Consult applicable structural or rigging standards for minimum thread engagement and safety factor requirements.