---
product_id: 432330265
title: "NORJIN 4 Pack G80 Alloy Steel Hammerlock Coupling Link, 5/16\" Hammer Lock Safety Chain Connector Link 4400 lbs Working Load Limit"
brand: "norjin"
price: "₩65687"
currency: KRW
in_stock: true
reviews_count: 8
url: https://www.desertcart.kr/products/432330265-norjin-4-pack-g80-alloy-steel-hammerlock-coupling-link-5
store_origin: KR
region: South Korea
---

# 4400 lbs Limit 4 Pcs Grade 80 Steel NORJIN 4 Pack G80 Alloy Steel Hammerlock Coupling Link, 5/16" Hammer Lock Safety Chain Connector Link 4400 lbs Working Load Limit

**Brand:** norjin
**Price:** ₩65687
**Availability:** ✅ In Stock

## Summary

> 🔒 Lock in Safety, Unlock Potential!

## Quick Answers

- **What is this?** NORJIN 4 Pack G80 Alloy Steel Hammerlock Coupling Link, 5/16" Hammer Lock Safety Chain Connector Link 4400 lbs Working Load Limit by norjin
- **How much does it cost?** ₩65687 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/432330265-norjin-4-pack-g80-alloy-steel-hammerlock-coupling-link-5)

## Best For

- norjin enthusiasts

## Why This Product

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

## Key Features

- • **Heavy-Duty Capacity:** Supports a robust 4400 lbs working load limit for all your heavy lifting needs.
- • **Unmatched Durability:** Crafted from premium G80 alloy steel for long-lasting performance.
- • **Versatile Applications:** Perfect for trailers, hoisting, and various industrial uses—your go-to connector.
- • **Effortless Installation:** Designed for quick assembly and disassembly, saving you time on the job.
- • **Customer-Centric Support:** We prioritize your satisfaction with dedicated service for all inquiries.

## Overview

The NORJIN 4 Pack G80 Alloy Steel Hammerlock Coupling Link is engineered for strength and reliability, featuring a 5/16" size and a maximum working load limit of 4400 lbs. Made from grade 80 alloy steel, these connectors are designed for easy installation and are suitable for a wide range of applications, including trailers and industrial lifting. With a commitment to customer service, NORJIN ensures you have the support you need.

## Description

NORJIN 4 Pack G80 Alloy Steel Hammerlock Coupling Link, 5/16" Hammer Lock Safety Chain Connector Link 4400 lbs Working Load Limit

## Features

- 【Specification】: 4 Pcs G80 Alloy Steel Connecting Link, Size: 5/16", Load Limit: Max working load: 4400 pounds
- 【Premium Material】: Constructed of grade 80 alloy steel, heavy duty dual hammerlock coupler is solid, anti-corrosion and long service life.
- 【 Easy to Install】: Adding grease to the inside of the gasket and grind off the angle of the pin a little, then use a hammer or C-clamp to drive the pin to the locking ring.
- 【Wide Application】: It can be used to quickly assembly, dismantle and reassembly the lifting chain slings. Fit for trailer, port transportation, hoisting, sling connection, metallurgy, port and other industries, etc.
- 【Excellent Service】If you have any questions or concerns, please feel free to contact us. It is our policy to render the best service to our customers.

## Images

![NORJIN 4 Pack G80 Alloy Steel Hammerlock Coupling Link, 5/16" Hammer Lock Safety Chain Connector Link 4400 lbs Working Load Limit - Image 1](https://m.media-amazon.com/images/I/71-17h2aWGL.jpg)
![NORJIN 4 Pack G80 Alloy Steel Hammerlock Coupling Link, 5/16" Hammer Lock Safety Chain Connector Link 4400 lbs Working Load Limit - Image 2](https://m.media-amazon.com/images/I/61A8DC+1svL.jpg)
![NORJIN 4 Pack G80 Alloy Steel Hammerlock Coupling Link, 5/16" Hammer Lock Safety Chain Connector Link 4400 lbs Working Load Limit - Image 3](https://m.media-amazon.com/images/I/71owcvYlNgL.jpg)
![NORJIN 4 Pack G80 Alloy Steel Hammerlock Coupling Link, 5/16" Hammer Lock Safety Chain Connector Link 4400 lbs Working Load Limit - Image 4](https://m.media-amazon.com/images/I/61LmXB10E-L.jpg)
![NORJIN 4 Pack G80 Alloy Steel Hammerlock Coupling Link, 5/16" Hammer Lock Safety Chain Connector Link 4400 lbs Working Load Limit - Image 5](https://m.media-amazon.com/images/I/514ZH-87vPL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Safety
*by J***L on May 29, 2025*

Works well for safety chains

### ⭐⭐⭐⭐⭐ Good Solid Shackle
*by A***X on August 7, 2023*

I have a 2019 Ford F250 and getting trailer safety chains hooked up can be a easy or a pain depending on getting the hooks in just the right position. I bought these to help simplify that issue. I put the hooks on by myself. I did add some extra bevel to the pins with a bench grinder to make them a little easier to install. I am 59 and have arthritic hands and can save it was a struggle but I was able to do it without tossing my hammer across the yard. I have since used the shackles to pull my travel trailer more than 600 miles and had no issues with anything coming apart. Thankfully I have not had to see how they would function if I did have a coupler failure but I am confident they would do the job.

### ⭐⭐⭐⭐⭐ Easy to install
*by J***O on February 16, 2025*

Very well made

## Frequently Bought Together

- NORJIN 4 Pack G80 Alloy Steel Hammerlock Coupling Link, 5/16" Hammer Lock Safety Chain Connector Link 4400 lbs Working Load Limit
- yakicag Oblong Master Link, 2 Pack 1/2" Safety Heavy Duty Chain Link Lifting Ring, 4400 lbs Load Capacity, Heavy Duty Grade 80 Steel, for Lifting Rigging, Red
- QWORK G80 Alloy Steel Hammerlock Coupling Link Connecting Link, 3/8", Red Painted, 7100 lbs Working Load Limit, 4 Pack

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**Shop now:** [https://www.desertcart.kr/products/432330265-norjin-4-pack-g80-alloy-steel-hammerlock-coupling-link-5](https://www.desertcart.kr/products/432330265-norjin-4-pack-g80-alloy-steel-hammerlock-coupling-link-5)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-02-19*