---
product_id: 26792184
title: "National Hardware N221-689 2162BC Hook Bolt Zinc plated, 5/16\" x 5\""
brand: "national hardware"
price: "KD 2.47"
currency: KWD
in_stock: true
reviews_count: 8
category: "National Hardware"
url: https://www.desertcart.com.kw/products/26792184-national-hardware-n221-689-2162bc-hook-bolt-zinc-plated-5
store_origin: KW
region: Kuwait
---

# Grade 5 steel strength 5/16" x 5" precision size Zinc plating corrosion resistance National Hardware N221-689 2162BC Hook Bolt Zinc plated, 5/16" x 5"

**Brand:** national hardware
**Price:** KD 2.47
**Availability:** ✅ In Stock

## Summary

> 🔩 Hook into reliability with National Hardware’s zinc-plated power bolts!

## Quick Answers

- **What is this?** National Hardware N221-689 2162BC Hook Bolt Zinc plated, 5/16" x 5" by national hardware
- **How much does it cost?** KD 2.47 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/26792184-national-hardware-n221-689-2162bc-hook-bolt-zinc-plated-5)

## Best For

- national hardware enthusiasts

## Why This Product

- Trusted national hardware brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Hex Head Design:** Easy wrench access for fast, hassle-free installation.
- • **Trusted Durability:** Grade 5 steel wire construction built to last through any project.
- • **Precision Threading:** Standard 5/16"-18 UNC threads ensure a secure, reliable fit every time.
- • **Engineered for Versatility:** Perfect for home, farm, and industrial projects—one bolt fits all.
- • **Corrosion-Resistant Zinc Finish:** Keeps your hardware looking sharp and rust-free indoors or out.

## Overview

National Hardware’s N221-689 2162 Hook Bolts deliver industrial-grade strength with a corrosion-resistant zinc finish. Sized at 5/16" x 5", these Grade 5 steel bolts feature standard machine screw threads and hex heads for easy installation, making them ideal for both interior and exterior fastening needs across home, farm, and industrial applications.

## Description

Product Description Whether for home, farm, builder or industrial customers, National has all the right hardware in the sizes and finishes you need. With over a century of service National is committed to maintaining the highest level of product quality, innovation and manufacturing technology. Providing latching and fastening options for all of your indoor and outdoor uses. Hook bolts are an ideal solution to situations where self-tapping hooks are not a feasible option. Zinc plating offers corrosion resistance for all of your functional hardware needs. From the Manufacturer Whether for home, farm, builder or industrial customers, National has all the right hardware in the sizes and finishes you need. With over a century of service National is committed to maintaining the highest level of product quality, innovation and manufacturing technology. Providing latching and fastening options for all of your indoor and outdoor uses. Hook bolts are an ideal solution to situations where self-tapping hooks are not a feasible option. Zinc plating offers corrosion resistance for all of your functional hardware needs.

Review: Works great - Used to support 185 lbs garage door spring tension. Works great.
Review: This hook bolt is perfect for mounting and adjusting a garage door spring. - This hook bolt is long enough to provide plenty of adjustability and strong enough to hold spring tension.

## Features

- Designed for home and industrial applications
- 2 Hex nuts included
- Standard machine screw threads
- For interior and exterior applications
- Manufactured from steel wire

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000BOKOWO |
| Best Sellers Rank | #75,089 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #230 in Screw-In Hooks |
| Brand | National Hardware |
| Color | Zinc plated |
| Compatible Groove Diameter | 0.63 Inches |
| Customer Reviews | 4.6 out of 5 stars 49 Reviews |
| Drive System | External Hex |
| Exterior Finish | Zinc |
| Fastener Size | 5/16" x 5" |
| Fastener Type | Hexagon Bolt |
| Finish Types | Zinc plated |
| Global Trade Identification Number | 00038613124127 |
| Grade Rating | Grade 5 |
| Head Style | Hex |
| Head Type | Hexagonal |
| Included Components | National Hardware N221-689 2162 Hook Bolts in Zinc, 5/16" x 5" |
| Item Diameter | 0.63 Inches |
| Item Dimensions | 6.5 x 2.5 x 2.2 inches |
| Item Hardness | Grade 5 |
| Item Type Name | Stanley National Hardware N221-689 2162BC Hook Bolt Zinc plated, 5/16" x 5" |
| Item Weight | 0.01 Ounces |
| Manufacturer | National Hardware |
| Manufacturer Grade | Grade 5 |
| Material | Plastic |
| Material Type | Plastic |
| Metal Type | Zinc |
| Model | N221-689 |
| Number Of Items | 1 |
| Number of Pieces | 2 |
| Part Number | N221-689 |
| Screw Head Style | Hex |
| Screw Point Style | Cone Point |
| Size Name | 5/16" x 5" |
| Thread Class | 3B |
| Thread Coverage | Fully Threaded |
| Thread Size | 5/16"-18 |
| Thread Style | Right Hand |
| Thread Type | Unc |
| UPC | 038613124127 |
| Unit Count | 1.0 Count |
| Warranty Description | Warranty |

## Product Details

- **Material:** Plastic
- **Thread Size:** 5/16"-18
- **Exterior Finish:** Zinc
- **Manufacturer Grade:** Grade 5
- **Head Style:** Hex

## Images

![National Hardware N221-689 2162BC Hook Bolt Zinc plated, 5/16" x 5" - Image 1](https://m.media-amazon.com/images/I/51tteNqjFcL.jpg)
![National Hardware N221-689 2162BC Hook Bolt Zinc plated, 5/16" x 5" - Image 2](https://m.media-amazon.com/images/I/91Oh5L19yHL.jpg)
![National Hardware N221-689 2162BC Hook Bolt Zinc plated, 5/16" x 5" - Image 3](https://m.media-amazon.com/images/I/51U7uqb+y0L.jpg)
![National Hardware N221-689 2162BC Hook Bolt Zinc plated, 5/16" x 5" - Image 4](https://m.media-amazon.com/images/I/51gyMLoX6ML.jpg)
![National Hardware N221-689 2162BC Hook Bolt Zinc plated, 5/16" x 5" - Image 5](https://m.media-amazon.com/images/I/71N6-5ioLfL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great
*by A***. on April 22, 2026*

Used to support 185 lbs garage door spring tension. Works great.

### ⭐⭐⭐⭐⭐ This hook bolt is perfect for mounting and adjusting a garage door spring.
*by J***5 on August 11, 2020*

This hook bolt is long enough to provide plenty of adjustability and strong enough to hold spring tension.

### ⭐⭐⭐⭐⭐ Very sturdy
*by B***G on March 26, 2019*

Perfect for hanging bird feeders! Sturdy and would buy again if needed.

## Frequently Bought Together

- National Hardware N221-689 2162 Hook Bolts in Zinc, 5/16" x 5"
- National Hardware N221-697 2162 Hook Bolts in Zinc, 3/8" x 7"
- Prime-Line 9069290 Clothesline Hooks With Nuts, 1/4 In.-20 X 4-1/4 In., Zinc Plated Steel (10 Pack)

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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-05-20*