National Marker N221309 Zinc Eye Bolt Hex Nut 1/2x4 in

Product Description

The NATIONAL MARKER N221309 is a zinc-plated eye bolt with an assembled hex nut, designed for secure fastening in both home and industrial settings. Part of the 2160BC catalog series, it features machine screw threads and measures 0.5 inches in diameter by 4 inches in length. Manufactured from steel wire with a zinc finish for corrosion resistance, this eye bolt is rated for interior and exterior use. It is a standard hardware component installed by contractors, maintenance technicians, and experienced DIYers wherever a reliable anchor point or hanging fastener is needed.

This eye bolt suits a wide range of general-purpose fastening applications across residential and commercial environments. Its assembled hex nut design allows for immediate installation without additional hardware sourcing. Suitable for overhead hanging, cable routing, line anchoring, and similar tasks where a looped fastener point is required. The zinc coating makes it appropriate for both indoor installations and outdoor environments exposed to moisture and weather.

Key Features

• Zinc-plated steel wire construction for corrosion resistance in interior and exterior applications
• Machine screw thread pattern with hex nut included and pre-assembled
• 0.5 inch shank diameter by 4 inch length for versatile fastening depth
• Part of the 2160BC series for consistent hardware sourcing
• Suitable for both residential and industrial use cases

Compatibility

Designed as a general-purpose eye bolt for use in standard wood, masonry, or metal substrates where a 0.5 inch threaded anchor point is required for home or industrial applications.

Installation Notes

Installation is typically performed by general contractors, maintenance technicians, or qualified tradespeople using standard hand tools. Always ensure the substrate material is rated for the intended load before installing eye bolts in overhead or high-tension applications. Pre-drill a pilot hole appropriate for the shank diameter to prevent substrate splitting or thread damage. Follow applicable building codes and load-rating guidelines when using eye bolts for structural or overhead lifting purposes.

Technical Specifications

• Shank Diameter: 0.5 inches
• Length: 4 inches
• Thread Type: Machine screw
• Material: Steel wire
• Finish: Zinc plated
• Hardware Included: Hex nut, assembled
• Weight: 0.329 pounds
• Series: 2160BC
• Application: Interior and exterior
• Unit of Measure: Each

Standard Information

• Brand: NATIONAL MARKER
• Manufacturer Part Number: N221309