National Hardware N221-309 Eye Bolt 1/2 X 4 Inch Steel

Product Description

The NATIONAL HARDWARE N221-309 is a zinc-plated steel eye bolt measuring 1/2 inch diameter by 4 inches in length, assembled with a hex nut and featuring machine screw threads. Part of the 2160BC catalog series, this fastener is manufactured from steel wire and finished with zinc plating for corrosion resistance in both interior and exterior environments. It is suited for hanging, rigging, and anchoring applications across residential and light industrial settings. Tradespeople, maintenance technicians, and knowledgeable DIYers install this type of fastener where a threaded loop anchor point is needed in wood, metal, or structural substrates.

This eye bolt is designed for general-purpose home and industrial applications. Its machine screw thread pattern and pre-assembled hex nut make it compatible with standard fastening tasks such as hanging cable, wire rope, chain, or rope in both indoor and outdoor conditions. The zinc finish provides a baseline level of weather resistance suitable for exterior use where moderate moisture exposure is expected.

Key Features

• Machine screw threads with hex nut assembled for immediate installation
• Zinc-plated steel wire construction for corrosion resistance
• Suitable for interior and exterior applications
• 1/2 inch diameter by 4 inch length for use in standard anchoring and rigging tasks
• Part of the 2160BC catalog series

Compatibility

Designed as a general-purpose eye bolt for residential and light industrial fastening applications where a 1/2 inch machine screw thread and hex nut configuration is required.

Installation Notes

Installation is typically performed by maintenance technicians, contractors, or qualified DIYers using standard hand tools. Ensure the substrate material is rated for the intended load before installation. Power down or de-energize any adjacent systems before working in confined or electrical proximity areas. Follow applicable building codes and load ratings for the specific application.