National Hardware N221-887 Turnbuckle Hook Eye Zinc

Product Description

The NATIONAL HARDWARE N221-887 is a hook-and-eye turnbuckle designed for tensioning and adjusting wire, rope, cable, and rod assemblies in structural and rigging applications. The body is hex-shaped for wrench engagement, allowing precise tension adjustment without slipping. The aluminum body carries a zinc finish for corrosion resistance, while the hook and eye ends are steel for load-bearing strength. At 0.32 pounds, it is lightweight enough for overhead and vertical installations where cumulative load matters. This turnbuckle suits contractors, riggers, and maintenance trades who need a reliable, adjustable tensioning device on the job.

This turnbuckle is appropriate for residential and light commercial use, including fence wire tensioning, awning and shade structure rigging, cable railing systems, sign hanging, and general tensioning tasks where a 3/8 inch thread size and 10-1/2 inch take-up length are specified. The hook end allows quick attachment to rings, eyes, and anchor points without threading, while the eye end accepts bolts and pins. It is sold individually and is a catalog 2172BC series part.

Key Features

• Hex-shaped aluminum body allows standard wrench engagement for precise tension adjustment
• Zinc finish on aluminum body provides corrosion resistance for indoor and protected outdoor use
• Steel hook and eye ends deliver load-bearing strength at connection points
• 3/8 inch thread size and 10-1/2 inch length suit a wide range of light structural tensioning applications
• Lightweight at 0.32 pounds, suitable where cumulative assembly weight is a factor
• Sold as a single unit, MOQ of 1

Compatibility

Designed as an OEM-style replacement or direct-use turnbuckle for applications requiring a 3/8 inch hook-and-eye turnbuckle with a hex body. Part of the NATIONAL HARDWARE 2172BC catalog series.

Installation Notes

Installation is typically performed by contractors, riggers, or maintenance technicians using standard open-end or adjustable wrenches on the hex body. Always de-tension the assembly and relieve load before removing or replacing a turnbuckle. Thread both the hook and eye ends evenly to maintain alignment and avoid cross-threading. Do not exceed the rated working load limit for the application; consult applicable structural or rigging codes for load requirements.