---
product_id: 473967066
title: "12Sets 4040 Series Aluminum Extrusion Black Connectors,12pcs 4040 Aluminum Profile Corner Brackets,with 24 pcs T Nuts and Screws for 4040 Extrusion Extrusion Profile Accessories"
brand: "qijintrid"
price: "1748217₫"
currency: VND
in_stock: true
reviews_count: 2
url: https://www.desertcart.vn/products/473967066-12sets-4040-series-aluminum-extrusion-black-connectors-12pcs-4040-aluminum
store_origin: VN
region: Vietnam
---

# 12 pcs precision corner brackets 24 pcs M8 carbon steel T nuts Complete set with screws & wrench 12Sets 4040 Series Aluminum Extrusion Black Connectors,12pcs 4040 Aluminum Profile Corner Brackets,with 24 pcs T Nuts and Screws for 4040 Extrusion Extrusion Profile Accessories

**Brand:** qijintrid
**Price:** 1748217₫
**Availability:** ✅ In Stock

## Summary

> 🖤 Build Bold. Connect Strong. Own the Frame.

## Quick Answers

- **What is this?** 12Sets 4040 Series Aluminum Extrusion Black Connectors,12pcs 4040 Aluminum Profile Corner Brackets,with 24 pcs T Nuts and Screws for 4040 Extrusion Extrusion Profile Accessories by qijintrid
- **How much does it cost?** 1748217₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/473967066-12sets-4040-series-aluminum-extrusion-black-connectors-12pcs-4040-aluminum)

## Best For

- qijintrid enthusiasts

## Why This Product

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

## Key Features

- • **All-in-One Assembly Kit:** Includes screws and wrench for instant project setup
- • **Versatile Industrial Use:** Perfect for CNC, 3D printing, robotics & custom builds
- • **Premium Carbon Steel T Nuts:** Durable, deformation-resistant fastening for lasting stability
- • **Rock-Solid 90° Connections:** Engineered for flawless, rigid aluminum frame joints
- • **Sleek Black Polished Finish:** Modern aesthetic that complements any industrial design

## Overview

This 12-set kit features 4040 series black aluminum corner brackets paired with 24 M8 carbon steel T nuts and screws, plus a wrench for easy assembly. Designed for 90° connections, it ensures durable, polished, and precise framing ideal for CNC machines, 3D printers, robotics, and industrial projects.

## Description

12Sets 4040 Series Aluminum Extrusion Black Connectors,12pcs 4040 Aluminum Profile Corner Brackets,with 24 pcs T Nuts and Screws for 4040 Extrusion Extrusion Profile Accessories

## Features

- Package: 12 pcs 4040 Series black corner brackets,24 pcs M8 T nuts, 24pcs screws and 1pcs wrench
- Size: 35x40x40 mm(1.38x1.58x1.58 inch).4040 Extruded aluminum connector set are used to connect pieces of 4040 aluminum extrusion hardware at a 90 degree angle
- Material: 4040 Corner connectors:aluminum;M8 Sliding T nuts are made of carbon steel, not easy to deform
- Suitable: Fit for 4040 series T-slot aluminum extrusion profile rail
- Use: 4040 Aluminum extrusion corner brackets are widely used to build industrial aluminum frame structures, CNC routers, CNC laser cutters, 3D printers, 3D carver machine, robotics projects, etc

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Finish Type | Polished |
| Unit Count | 12.0 Count |
| Mounting Type | Corner Mount |
| Manufacturer | Qijin |
| UPC | 771077162846 |
| Part Number | JMTNUTBlack-4040-12-FBA |
| Item Weight | 1.98 pounds |
| Product Dimensions | 1.38 x 1.38 x 1.1 inches |
| Item model number | JMTNUTBlack-4040-12-FBA |
| Size | 12Sets Black with Screws |
| Finish | Polished |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Color:** Black
- **Brand:** QIJINTRID
- **Material:** Aluminum
- **Item dimensions L x W x H:** 1.38 x 1.38 x 1.1 inches
- **Item Weight:** 0.9 Kilograms

## Images

![12Sets 4040 Series Aluminum Extrusion Black Connectors,12pcs 4040 Aluminum Profile Corner Brackets,with 24 pcs T Nuts and Screws for 4040 Extrusion Extrusion Profile Accessories - Image 1](https://m.media-amazon.com/images/I/71buVv9b++L.jpg)
![12Sets 4040 Series Aluminum Extrusion Black Connectors,12pcs 4040 Aluminum Profile Corner Brackets,with 24 pcs T Nuts and Screws for 4040 Extrusion Extrusion Profile Accessories - Image 2](https://m.media-amazon.com/images/I/61Bc0HWRwyL.jpg)
![12Sets 4040 Series Aluminum Extrusion Black Connectors,12pcs 4040 Aluminum Profile Corner Brackets,with 24 pcs T Nuts and Screws for 4040 Extrusion Extrusion Profile Accessories - Image 3](https://m.media-amazon.com/images/I/61UISHoptGL.jpg)
![12Sets 4040 Series Aluminum Extrusion Black Connectors,12pcs 4040 Aluminum Profile Corner Brackets,with 24 pcs T Nuts and Screws for 4040 Extrusion Extrusion Profile Accessories - Image 4](https://m.media-amazon.com/images/I/71Ins8XbwuL.jpg)
![12Sets 4040 Series Aluminum Extrusion Black Connectors,12pcs 4040 Aluminum Profile Corner Brackets,with 24 pcs T Nuts and Screws for 4040 Extrusion Extrusion Profile Accessories - Image 5](https://m.media-amazon.com/images/I/51bXwV5UblS.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐ Why is the hardware so greasy
*by M***O on May 20, 2024*

Works for what I needed in a pinch but tabs can't be broken to make flush if you plan to mount other than intended photo. The screws also literally drenched in grease but ended up using other ones I had.

### ⭐⭐⭐ Not very nice
*by C***R on June 17, 2024*

The product castings are very shoddy not smooth

## Frequently Bought Together

- 12Sets 4040 Series Aluminum Extrusion Black Connectors,12pcs 4040 Aluminum Profile Corner Brackets,with 24 pcs T Nuts and Screws for 4040 Extrusion Extrusion Profile Accessories
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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-03-15*