National Marker N221879 Hook Eye Turnbuckle 5/16x9 in

Product Description

The NATIONAL MARKER N221879 is a hook and eye turnbuckle designed for tensioning and adjusting tension in rigging, cable, and wire rope applications. The body is hex-shaped for easy wrench engagement and is manufactured from aluminum with a zinc finish. The hook and eye fittings are steel. Sized at 5/16 inch by 9 inches, this turnbuckle is suited for a range of light-to-medium-duty tensioning tasks encountered in trade and commercial work. It is sold individually and requires a minimum order quantity of 10 units.

This turnbuckle is appropriate for use in electrical, mechanical, and general trade applications where cable or rod tension must be set or adjusted. The hex body allows a wrench to hold the body stationary while the fittings are threaded in or out. The zinc finish provides a degree of corrosion resistance for use in covered or semi-exposed environments. Installers in electrical, HVAC, and mechanical trades use turnbuckles of this type to tension support rods, bracing wires, and equipment tie-downs.

Key Features

• Hex-shaped aluminum body for wrench engagement during tensioning
• Steel hook and eye fittings for secure end connections
• Zinc finish on aluminum body for corrosion resistance
• 5/16 inch thread size with 9 inch overall length
• Sold per each unit with minimum order quantity of 10

Compatibility

Designed as a standard hook and eye turnbuckle for general-purpose tensioning and rigging applications where a 5/16 inch by 9 inch fitting is specified. Catalog series reference: 2172BC.

Installation Notes

Installation is typically performed by mechanical, electrical, or general trade professionals. Before adjusting tension, ensure that all connected loads are relieved or safely supported. Use a wrench on the hex body to prevent the body from rotating while threading the hook and eye fittings to the desired tension. Do not exceed the rated load capacity of the turnbuckle or the connected rigging components.