---
product_id: 311412600
title: "Extreme Max Products 5900.5603 Rectangular Aluminum Double Backer Nut - Pack of 24"
brand: "extreme max"
price: "₩18005"
currency: KRW
in_stock: true
reviews_count: 3
url: https://www.desertcart.kr/products/311412600-extreme-max-products-5900-5603-rectangular-aluminum-double-backer-nut
store_origin: KR
region: South Korea
---

# Extreme Max Products 5900.5603 Rectangular Aluminum Double Backer Nut - Pack of 24

**Brand:** extreme max
**Price:** ₩18005
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Extreme Max Products 5900.5603 Rectangular Aluminum Double Backer Nut - Pack of 24 by extreme max
- **How much does it cost?** ₩18005 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/311412600-extreme-max-products-5900-5603-rectangular-aluminum-double-backer-nut)

## Best For

- extreme max enthusiasts

## Why This Product

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

## Description

Extreme Max Products Rectangular Aluminum Double Backer Nut features 1-1/4 inch x 2-1/4 inch. Works on any 5/16 inch stud which is premium heat treated and is backed by two-year full-replacement warranty.

Review: Great deal, fast ship
Review: Same product on sleds, just needed to replace damaged ones

## Features

- 1-1/4" x 2-1/4", 0.180" thickness
- Works on any 5/16" stud
- Premium aluminum
- Pack of 24
- Two-year full replacement warranty

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002YXBZUA |
| Brand | Extreme Max |
| Customer Reviews | 5.0 5.0 out of 5 stars (6) |
| Drive Style | External Hex |
| Exterior Finish | Aluminum |
| Global Trade Identification Number | 00871580004265 |
| Item Diameter | 0.31 Inches |
| Item Dimensions | 23.5 x 17.8 x 5.1 centimeters |
| Item Weight | 2 Pounds |
| Manufacturer | Extreme Max |
| Material Type | Aluminum |
| Metal Type | Aluminum |
| Model | 5900.5603 |
| Number of Pieces | 24 |
| Part Number | 5900.5603 |
| UPC | 871580004265 |

## Product Details

- **Brand:** Extreme Max
- **Exterior finish:** Aluminum
- **Item dimensions L x W x H:** 23.5 x 17.8 x 5.1 centimeters
- **Material:** Aluminum
- **Metal type:** Aluminum

## Images

![Extreme Max Products 5900.5603 Rectangular Aluminum Double Backer Nut - Pack of 24 - Image 1](https://m.media-amazon.com/images/I/61Djk+xCYjL.jpg)
![Extreme Max Products 5900.5603 Rectangular Aluminum Double Backer Nut - Pack of 24 - Image 2](https://m.media-amazon.com/images/I/61nzhZDx-SL.jpg)
![Extreme Max Products 5900.5603 Rectangular Aluminum Double Backer Nut - Pack of 24 - Image 3](https://m.media-amazon.com/images/I/61oQpmqSURL.jpg)
![Extreme Max Products 5900.5603 Rectangular Aluminum Double Backer Nut - Pack of 24 - Image 4](https://m.media-amazon.com/images/I/61scdjm5X7L.jpg)
![Extreme Max Products 5900.5603 Rectangular Aluminum Double Backer Nut - Pack of 24 - Image 5](https://m.media-amazon.com/images/I/61w4Ks1ydKL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***R on 7 May 2024*

Great deal, fast ship

### ⭐⭐⭐⭐⭐ Review
*by M***L on 8 January 2020*

Same product on sleds, just needed to replace damaged ones

### ⭐⭐⭐⭐⭐ Review
*by L***. on 17 February 2016*

Very happy with the product, quick shipping.

---

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**Shop now:** [https://www.desertcart.kr/products/311412600-extreme-max-products-5900-5603-rectangular-aluminum-double-backer-nut](https://www.desertcart.kr/products/311412600-extreme-max-products-5900-5603-rectangular-aluminum-double-backer-nut)

---

*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-06-01*