Description
Overview
The National Hardware Eye Bolt with Nut (N221-309) is designed for fastening, lifting, and tie-down applications in home, farm, builder, and industrial environments.
| Manufacturer Part Number | N221-309 |
|---|---|
| Brand | National Hardware |
| Thread Size | 1/2 in. |
| Overall Length | 4 in. |
| Length Under Eye | 2.14 in. |
| Eye Inside Diameter | 1 in. |
| Eye Outside Diameter | 0.44 in. |
| Working Load Limit | 300 lb |
| Material | Steel |
| Finish | Zinc-Plated |
| Nut Included | Yes |
| Package Quantity | 1 pc (Bagged) |
| Weight | 1.19 lb |
| Prop 65 Notice | California residents see Prop 65 Warnings |
Technical Features
- Zinc-plated steel construction provides corrosion resistance, extending the service life of the fastener in both indoor and outdoor environments.
- 300 lb working load limit establishes a defined safe-use threshold for lifting, hanging, and tie-down tasks, supporting load planning on the job site.
- 1/2 in. thread size with 4 in. overall length delivers substantial thread engagement depth for secure anchoring into structural substrates.
- 2.14 in. length under eye provides adequate shank length for installation through materials of varying thickness.
- 1 in. inside eye diameter accommodates standard hooks, carabiners, rope, and chain connections without modification.
- Nut included allows for immediate installation without sourcing a separate matching fastener, reducing setup time.
- Bagged, single-piece packaging keeps the fastener and nut together for straightforward handling and storage on site.
Applications
- Residential, farm, and light industrial tie-down and anchoring applications
- Attachment point for rope, wire, cable, or chain in overhead or lateral rigging setups
- Outdoor installations where zinc-plated corrosion resistance is required
- Builder and contractor use requiring a rated, threaded anchor point in wood or similar structural materials
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