National Marker N221150 Zinc Eye Bolt Hex Nut 5/16x2.5in

Product Description

The NATIONAL MARKER N221150 is a zinc-plated steel eye bolt with hex nut, sold as an assembled unit ready for immediate installation. Part of the 2160BC catalog series, it features machine screw threads and measures 5/16 inch in diameter by 2-1/2 inches in length. The eye bolt is manufactured from steel wire with a zinc finish for corrosion resistance. It weighs approximately 0.088 pounds. Licensed tradespeople and facility maintenance technicians install this hardware in both residential and light industrial settings where a reliable looped anchor point is needed for cable, rope, chain, or hanging applications.

This eye bolt is suited for interior and exterior use, making it appropriate for a range of mounting scenarios including overhead rigging anchor points, cable management supports, and utility hanging applications. The assembled hex nut simplifies installation and ensures a secure fastened connection on structural members, joists, or framing. Its compact size and machine screw thread pattern make it a common stock item for trade work requiring quick, repeatable hardware installations.

Key Features

• Zinc-plated finish provides corrosion resistance for interior and exterior use
• Machine screw threads with pre-assembled hex nut for immediate installation
• 5/16 inch diameter by 2-1/2 inch length suits standard anchor-point applications
• Steel wire construction delivers reliable tensile strength for hanging and rigging use
• Part of the 2160BC catalog series for consistent sourcing and replacement

Compatibility

Designed as a standard zinc eye bolt replacement or new-installation hardware for residential and industrial applications requiring a 5/16 inch machine screw thread eye bolt with hex nut.

Installation Notes

Installation is typically performed by general contractors, electricians, or maintenance technicians using standard hand tools. Always pre-drill a pilot hole sized appropriately for the bolt diameter to prevent splitting or structural damage. Ensure the mounting substrate can support the intended load before securing the hex nut. Verify that the application complies with any applicable local building or rigging codes before placing the fastener in service.

Technical Specifications

• Diameter: 5/16 inches
• Length: 2-1/2 inches
• Material: Steel wire with zinc plating
• Thread Type: Machine screw
• Included Hardware: Hex nut, assembled
• Weight: 0.088 pounds
• Unit of Measure: Each
• Minimum Order Quantity: 10

Standard Information

• Brand: NATIONAL MARKER
• Manufacturer Part Number: N221150