National Hardware N221-580 Ss Eye Bolt 1/4 X 2.5 in Hex Nut

Product Description

The NATIONAL HARDWARE N221-580 is a stainless steel eye bolt designed for anchoring, lifting, and rigging applications where corrosion resistance is required. Part of the 2161BC catalog series, this fastener measures 1/4 inch in diameter by 2.5 inches in length and features machine screw threads with a hex nut assembled. The stainless steel construction resists rust and corrosion, making it suitable for marine, outdoor, and wet-environment installations. Licensed tradespeople and general contractors use this hardware in structural, mechanical, and rigging setups where a reliable threaded eye anchor point is needed.

This eye bolt is suited for residential and commercial applications including cable and wire anchoring, tie-down points, pulley and block rigging, and general load-securing tasks. The assembled hex nut allows for secure fastening through panels, beams, or structural members without requiring a separate nut. Its compact 1/4-inch diameter makes it appropriate for light-duty to medium-duty anchoring tasks in both indoor and outdoor environments.

Key Features

• Stainless steel construction resists corrosion in wet and marine environments
• Machine screw threads provide positive thread engagement with the included hex nut
• Hex nut assembled for convenience during installation
• 1/4 inch diameter by 2.5 inch length suits a range of anchoring and rigging applications
• Part of the 2161BC series for consistent replacement and procurement

Compatibility

Designed as a standard 1/4-inch machine screw thread eye bolt suitable for use with matching 1/4-inch nuts, washers, and hardware in general anchoring and rigging assemblies.

Installation Notes

Install using appropriate hand tools sized for the hex nut and a wrench or pliers to hold the eye during tightening. Ensure the substrate material is rated to handle the intended load before installation. Follow applicable local building codes and load-rating guidelines for rigging and anchoring hardware. Do not exceed the rated working load of the fastener or the substrate.