# National Hardware® N221-309 Eye Bolt with Nut, Zinc Plated, 1/2 in x 4 in

**Brand:** [NATIONAL HARDWARE](https://dev.maxsupplyco.com/brands/NATIONAL%20HARDWARE)
**SKU:** HAR21270
**MPN:** N221-309
**Price:** $3.70 · in stock
**URL:** https://dev.maxsupplyco.com/product/national-mfg-sales-company-n221-309

## Features

- Standard machine screw threads
- Course machine screw thread on the extra large sizes (larger than 1/2 x 12)
- When subjected to 312 hr of salt fog spray testing, zinc-plated hardware showed severe corrosion while hardware with Weather Guard protection withstood these harsh conditions with very little deterioration.

## Specifications

| Spec | Value |
|---|---|
| UPC | 038613123632 |
| Brands | NATIONAL HARDWARE |
| Manufacturer | National Manufacturing Co. |
| Package Quantity | 1/Each |
| Manufacturer Part Number | N221-309 |

## Description

This 1/2 in x 4 in zinc-plated steel eye bolt with an assembled hex nut is designed for heavy-duty applications, offering a 300 lb load capacity for secure fastening. Ideal for both interior and exterior use, its stainless and zinc-plated steel construction provides excellent rust resistance, ensuring long-lasting durability even in harsh outdoor conditions. The included hex nut allows for easy installation and added stability. Bulk-packaged for convenience, this eye bolt is perfect for industrial, commercial, and residential projects requiring strength, reliability, and corrosion resistance.

Features

- Standard machine screw threads

- Course machine screw thread on the extra large sizes (larger than 1/2 x 12)

- When subjected to 312 hr of salt fog spray testing, zinc-plated hardware showed severe corrosion while hardware with Weather Guard protection withstood these harsh conditions with very little deterioration.