Description
Overview
The National Hardware N221-051 Eye Bolt with Nut (N221-051) is designed for fastening and latching applications across home, farm, builder, and industrial environments. This zinc-plated steel eye bolt provides corrosion resistance for both indoor and outdoor use, and ships as a single unit complete with nut.
| Specification | Value |
|---|---|
| MPN | N221-051 |
| Brand | National Hardware |
| Thread Size | 3/16 in. |
| Overall Length | 1-1/2 in. |
| Length Under Eye | 0.91 in. |
| Eye Inside Diameter | 0.28 in. |
| Eye Outside Diameter | 0.16 in. |
| Working Load Limit | 40 lb |
| Material | Steel |
| Finish | Zinc-Plated |
| Nut Included | Yes |
| Package Quantity | 1 pc |
| Packaging Type | Bagged |
| Weight | 2.71 lb |
Technical Features
- Zinc-plated steel construction provides corrosion resistance for reliable performance in both indoor and outdoor applications.
- 40 lb working load limit rated capacity supports light-duty fastening and latching tasks within defined load parameters.
- 0.28 in. inside eye diameter accommodates hooks, cables, and lines within that clearance range for secure attachment.
- 0.91 in. length under eye allows sufficient thread engagement for secure anchoring into a substrate.
- Nut included ships as a complete fastening assembly, eliminating the need to source a matching nut separately.
- 3/16 in. thread size compact diameter suited for lighter structural members, wood, and panel materials.
Applications
- Light-duty fastening and latching in residential home improvement projects
- Farm and agricultural utility hardware installations
- Builder and general construction applications requiring a corrosion-resistant eye anchor
- Indoor and outdoor use where a zinc-plated finish is specified for corrosion resistance
California Residents: See Proposition 65 Warnings before use.






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