---
product_id: 241793385
title: "BLCCLOY 20Pcs 2020 Aluminum Extrusion Black Corner Bracket T Slot Inside L Sh..."
brand: "blccloy"
price: "$34.69"
currency: USD
in_stock: null
reviews_count: 13
category: "Blccloy"
url: https://www.desertcart.us/products/241793385-blccloy-20pcs-2020-aluminum-extrusion-black-corner-bracket-t-slot
store_origin: US
region: United States of America
---

# 20pcs precision L-joint brackets Electrophoresis zinc alloy, rust-proof & abrasion resistant Includes 40 set screws + wrench BLCCLOY 20Pcs 2020 Aluminum Extrusion Black Corner Bracket T Slot Inside L Sh...

**Brand:** blccloy
**Price:** $34.69
**Availability:** ❌ Out of Stock

## Summary

> 🖤 Build Bold, Build Black: The Invisible Strength Your Frame Deserves

## Quick Answers

- **What is this?** BLCCLOY 20Pcs 2020 Aluminum Extrusion Black Corner Bracket T Slot Inside L Sh... by blccloy
- **How much does it cost?** $34.69 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/241793385-blccloy-20pcs-2020-aluminum-extrusion-black-corner-bracket-t-slot)

## Best For

- blccloy enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Durable electrophoresis zinc alloy finish resists rust and abrasion, ensuring long-term stability.
- • **Precision Fit:** Engineered for 2020 series aluminum extrusions, guaranteeing consistent sizing and easy installation.
- • **Seamless Strength:** Concealed corner braces fit perfectly inside 6mm T-slot aluminum profiles for a sleek, wobble-free frame.
- • **All-in-One Assembly:** Complete kit with 20 brackets, 40 screws, and a wrench—no extra hardware hunting required.
- • **Versatile Applications:** Ideal for 3D printers, CNC machines, robotics, and custom industrial frames—join the maker elite.

## Overview

The BLCCLOY 20Pcs 2020 Aluminum Extrusion Black Corner Bracket set offers a professional-grade solution for assembling 20 series aluminum profiles. Featuring 20 concealed L-shaped brackets made from rust-proof electrophoresis zinc alloy, plus 40 set screws and a wrench, this kit ensures precise, durable, and clean corner joints. Perfectly sized for 6mm T-slot profiles, it’s trusted by makers and industrial pros for building sturdy frames in 3D printing, CNC, robotics, and more.

## Description

desertcart.com: BLCCLOY 20Pcs 2020 Aluminum Extrusion Black Corner Bracket T Slot Inside L Shape Joint Angle Hardware Connector with Screws for 20 Series 20/20 2040 V Slot Extruded Aluminum Profile : Industrial & Scientific

Review: Strong, Precise, and Easy to Assemble - This corner bracket set is excellent quality. The aluminum extrusion brackets are sturdy and well‑machined, with clean edges and consistent sizing that make assembly smooth. The included T slot nuts and bolts fit perfectly, saving me the hassle of sourcing hardware separately. I used these for a DIY frame project, and the joints came out solid and square with no wobble. The finish looks professional, and the hardware tightened down securely without stripping. It’s clear these are designed with precision and durability in mind. For anyone working with 2020 series aluminum extrusion, this set is a reliable choice that delivers both strength and convenience. Highly recommend!
Review: Check slot width for proper fit. - CHECK YOUR SLOT SIZE! This is perfect for 6mm slots (which seem like it’s the more common size). Unfortunately my application was an 8mm slot. Still giving this 5 stars as it seems well made and it fits well into some other rail I have with a 6mm gap. My fault for not realizing there were different extrusion gap widths.

## Features

- Packed: 20pcs l joints brackets + 40pcs set screws + 1 wrench for set screw,more convenient than l-shape only.
- Material: electrophoresis zinc alloy, has excellent features in high abrasion resistance, rust proof and stability.
- Advantage: concealed corner brace, the l corner bracket can be completely hidden in the slot of the aluminum extrusions.
- Suitable for 2020 standard aluminum profiles slot 6mm and other suitable size profiles.
- 2020 series aluminum profile connector set widely used for building industrial aluminum frame structures, 3d printers, cnc routers, cnc laser cutters, robotics projects, 3d carvers, machine guards, workstations, etc.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08D6T9CGN |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #1,945 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Hardware Brackets |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,020) |
| Date First Available | July 17, 2020 |
| Finish | Powder Coated |
| Finish Type | Powder Coated |
| Included Components | 20 series aluminum extrusion l bracket., 2020 series m5 set screw. |
| Item Depth | 0.2362 inches |
| Item Package Quantity | 1 |
| Item Weight | 7.8 ounces |
| Item model number | 2020 series extrusion M5 |
| Manufacturer | Tongling Hardware |
| Mounting Type | Corner Mount |
| Part Number | Tongling-JC-20 |
| Product Dimensions | 1.02 x 0.37 x 1.02 inches |
| Size | 20pcs black with screws |
| Style | 20Pcs Interior Bracket with Screw |
| UPC | 796862233273 |
| Unit Count | 20.0 Count |

## Product Details

- **Brand:** BLCCLOY
- **Color:** Black
- **Item Weight:** 0.22 Kilograms
- **Item dimensions L x W x H:** 1.02 x 0.37 x 1.02 inches
- **Material:** Zinc

## Images

![BLCCLOY 20Pcs 2020 Aluminum Extrusion Black Corner Bracket T Slot Inside L Sh... - Image 1](https://m.media-amazon.com/images/I/71YGQkTOCCL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Strong, Precise, and Easy to Assemble
*by M***L on November 20, 2025*

This corner bracket set is excellent quality. The aluminum extrusion brackets are sturdy and well‑machined, with clean edges and consistent sizing that make assembly smooth. The included T slot nuts and bolts fit perfectly, saving me the hassle of sourcing hardware separately. I used these for a DIY frame project, and the joints came out solid and square with no wobble. The finish looks professional, and the hardware tightened down securely without stripping. It’s clear these are designed with precision and durability in mind. For anyone working with 2020 series aluminum extrusion, this set is a reliable choice that delivers both strength and convenience. Highly recommend!

### ⭐⭐⭐⭐⭐ Check slot width for proper fit.
*by S***Y on January 24, 2026*

CHECK YOUR SLOT SIZE! This is perfect for 6mm slots (which seem like it’s the more common size). Unfortunately my application was an 8mm slot. Still giving this 5 stars as it seems well made and it fits well into some other rail I have with a 6mm gap. My fault for not realizing there were different extrusion gap widths.

### ⭐⭐⭐⭐⭐ Need these!
*by W***T on February 4, 2026*

Good quality connectors for aluminum profile. Work as intended.

## Frequently Bought Together

- BLCCLOY 20Pcs/lot Black 2020 Series L-Shape Interior Inside Corner Connector Joint Bracket with Screws for 20x20 Series Aluminum Extrusion Profile Slot 6mm
- 4pcs 400mm T Slot 2020 Aluminum Extrusion European Standard Anodized Linear Rail for 3D Printer Parts and CNC DIY Black(15.75inch)
- 200pcs M5 T-Nuts Screws Kit for 2020 Series Aluminum Extrusion,40Pcs M5x10,40Pcs M5x8 Hexagon Socket Screws,40Pcs M5 T Sliding Nut,40Pcs M5 T Nut,40Pcs Washers (Black Nut and Screw Kits)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.us/products/241793385-blccloy-20pcs-2020-aluminum-extrusion-black-corner-bracket-t-slot](https://www.desertcart.us/products/241793385-blccloy-20pcs-2020-aluminum-extrusion-black-corner-bracket-t-slot)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-04*