National Mfg N221-309 Zinc Eye Bolt 0.5x4 in 300 Lb

Product Description

The NATIONAL MFG/SPECTRUM BRANDS HHI N221-309 is a zinc-plated eye bolt rated for 300 pounds of load capacity. Measuring 0.5 inches in diameter and 4 inches in length, this fastener features a looped head designed to accept hooks, cables, ropes, or wire rope for anchoring and rigging applications. The zinc finish provides basic corrosion resistance for general-purpose use. Sold in bulk packaging of 10 units per package, the N221-309 is a standard stocking item for contractors, maintenance crews, and facilities technicians who need reliable anchor-point hardware in consistent supply.

This eye bolt is suited for light-to-medium anchoring tasks in residential and commercial maintenance, construction, and trade service environments. Typical applications include securing cable runs, mounting anchor points for rope or wire, and general rigging where a 300-pound load rating meets the requirement. The bulk pack format makes it practical for stocking service vans or shop inventory.

Key Features

• 300-pound load capacity for light-to-medium anchoring and rigging use
• 0.5-inch diameter by 4-inch length for deep thread engagement in structural substrates
• Zinc finish provides basic corrosion resistance for general-purpose applications
• Looped eye head accepts hooks, carabiners, cable, and rope hardware
• Bulk pack of 10 units per package for efficient stocking and inventory management

Compatibility

Designed as a general-purpose eye bolt compatible with standard 0.5-inch threaded anchor applications in wood, structural framing, and similar substrates where a 300-pound load-rated fastener is required.

Installation Notes

Installation is performed by maintenance technicians, carpenters, or general contractors using standard hand tools. Ensure the substrate material is rated to support the intended load before installation. Do not exceed the 300-pound rated load capacity, and verify that the eye bolt is fully threaded into the substrate with adequate thread engagement. Always de-energize or secure any connected rigging before servicing the anchor point.