---
product_id: 610040175
title: "2Pcs Black Powder-Coated Concealed Post Base for 4x4 Post, 6mm Thickness(3 Gauge) Carbon Steel Concealed Joist Bracket Lumber Connector Brackets Fence Pole Flange Base"
brand: "yidu69q"
price: "HK$125"
currency: HKD
in_stock: false
reviews_count: 3
url: https://www.desertcart.hk/products/610040175-2pcs-black-powder-coated-concealed-post-base-for-4x4-post
store_origin: HK
region: Hong Kong
---

# Precision 12mm prepunched holes Durable black powder-coated finish 6mm thick 3-gauge carbon steel 2Pcs Black Powder-Coated Concealed Post Base for 4x4 Post, 6mm Thickness(3 Gauge) Carbon Steel Concealed Joist Bracket Lumber Connector Brackets Fence Pole Flange Base

**Brand:** yidu69q
**Price:** HK$125
**Availability:** ❌ Out of Stock

## Summary

> 🖤 Elevate your build with stealthy strength and sleek style!

## Quick Answers

- **What is this?** 2Pcs Black Powder-Coated Concealed Post Base for 4x4 Post, 6mm Thickness(3 Gauge) Carbon Steel Concealed Joist Bracket Lumber Connector Brackets Fence Pole Flange Base by yidu69q
- **How much does it cost?** HK$125 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/610040175-2pcs-black-powder-coated-concealed-post-base-for-4x4-post)

## Best For

- yidu69q enthusiasts

## Why This Product

- Trusted yidu69q brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision Fit:** Prepunched 12mm holes spaced at 36mm ensure effortless, secure installation every time.
- • **Sleek & Stealthy:** Matte black powder coating not only resists wear and corrosion but keeps your posts looking sharp and modern.
- • **Invisible Support:** Concealed design keeps your structural hardware out of sight, elevating the aesthetic of your outdoor projects.
- • **Rock-Solid Strength:** Crafted from premium 6mm thick Q235B carbon steel for unmatched durability and load-bearing confidence.
- • **Versatile Compatibility:** Designed for 4x4 posts (3½ inch diameter), perfect for decks, pergolas, fences, and more—connect with confidence.

## Overview

This 2-piece set of black powder-coated concealed post bases is engineered from robust 6mm (3-gauge) Q235B carbon steel, featuring precision prepunched holes for easy installation on 4x4 posts. Its corrosion-resistant finish and concealed design make it ideal for professional-grade decks, pergolas, fences, and other timber structures, combining durability with a clean, modern look.

## Description

SpecificationCarbon steel Q235B material, surface powder coating (wear resistance, corrosion resistance)Thickened, Thickness: 6mm(3gauge)Prepunched hole diameter(4pcs)：φ12mm(7/16 inches)Hole spacing(on center):36mm(1⅜ inches)Applicable post size:Φ89mm(3½ inches)Application:The product is used for wood roof truss, timber connectors, glulam beam to column connection,which is suitable for decks, gazebos, pergolas, railings, fences, or porticosNotice: for 4x4 Post Concealed Square Lumber or Diameter 3½ inch Round Lumber

Review: Solid though not perfect - The shipping had a delay, so could take half a star off for that. However, the item is solid. Yet not perfect - the round plate is not completely flat (see in the photo), which makes it not 100% perpendicular. Going to try these to make wooden step rails. Will see how it goes.
Review: Superior! - I ordered these black powder-coated post base brackets by YIDU69Q to repair the sagging sections of fence in my back yard. The fence is only a few years old, but the brackets that I purchased from one of the big box stores have already begun to deteriote at the base, literally cracking at the welds. Their brackets are less than half the thickness of these massive brutes (2.66mm compared to 6mm thick) and the welds are far more substantial on these. What a hugh disappointment the ones from the big box store have been! Besides the major difference in quality, their bracket is more than $25 for just one. These are less than $24 for two! Come springtime, I will be replacing ALL of them. Can't say enough good about these. They are superb and far superior!

## Features

- Carbon steel Q235B material, surface powder coating (wear resistance, corrosion resistance)
- Thickened, Thickness: 6mm(3gauge)
- Prepunched hole diameter(4pcs)：φ12mm(7/16 inches)
- Hole spacing(on center):36mm(1⅜ inches);Applicable post size:Φ89mm(3½ inches)
- Application:The product is used for wood roof truss, timber connectors, glulam beam to column connection,which is suitable for decks, gazebos, pergolas, railings, fences, or porticos
- Notice: for 4x4 Post Concealed Round Lumber or Square Lumber

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CKLHR3HH |
| Brand | YIDU69Q |
| Brand Name | YIDU69Q |
| Colour | Black |
| Customer Reviews | 4.4 out of 5 stars 5 Reviews |
| Finish Type | Powder Coated |
| Included Components | 2Pcs Black Powder-Coated Concealed Post Base |
| Item Dimensions | 9.5 x 8.9 x 8.9 Centimeters |
| Item Type Name | 2Pcs Black Powder-Coated Concealed Post Base |
| Item Weight | 615 g |
| Item dimensions L x W x H | 9.5 x 8.9 x 8.9 Centimeters |
| Manufacturer | YIDU69Q |
| Manufacturer Part Number | MW149-B-T2 |
| Material | Carbon Steel |
| Material Type | Carbon Steel |
| Model Number | MW149-B-T2 |
| Product Finish Type | Powder Coated |

## Product Details

- **Brand:** YIDU69Q
- **Colour:** Black
- **Item Weight:** 615 g
- **Item dimensions L x W x H:** 9.5 x 8.9 x 8.9 Centimeters
- **Material:** Carbon Steel

## Images

![2Pcs Black Powder-Coated Concealed Post Base for 4x4 Post, 6mm Thickness(3 Gauge) Carbon Steel Concealed Joist Bracket Lumber Connector Brackets Fence Pole Flange Base - Image 1](https://m.media-amazon.com/images/I/61FNFbIP3LL.jpg)
![2Pcs Black Powder-Coated Concealed Post Base for 4x4 Post, 6mm Thickness(3 Gauge) Carbon Steel Concealed Joist Bracket Lumber Connector Brackets Fence Pole Flange Base - Image 2](https://m.media-amazon.com/images/I/61+vBUJ-U+L.jpg)
![2Pcs Black Powder-Coated Concealed Post Base for 4x4 Post, 6mm Thickness(3 Gauge) Carbon Steel Concealed Joist Bracket Lumber Connector Brackets Fence Pole Flange Base - Image 3](https://m.media-amazon.com/images/I/610aCkn8qrL.jpg)
![2Pcs Black Powder-Coated Concealed Post Base for 4x4 Post, 6mm Thickness(3 Gauge) Carbon Steel Concealed Joist Bracket Lumber Connector Brackets Fence Pole Flange Base - Image 4](https://m.media-amazon.com/images/I/61EuCTDqtJL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ Solid though not perfect
*by V***. on 18 May 2024*

The shipping had a delay, so could take half a star off for that. However, the item is solid. Yet not perfect - the round plate is not completely flat (see in the photo), which makes it not 100% perpendicular. Going to try these to make wooden step rails. Will see how it goes.

### ⭐⭐⭐⭐⭐ Superior!
*by C***F on 8 January 2024*

I ordered these black powder-coated post base brackets by YIDU69Q to repair the sagging sections of fence in my back yard. The fence is only a few years old, but the brackets that I purchased from one of the big box stores have already begun to deteriote at the base, literally cracking at the welds. Their brackets are less than half the thickness of these massive brutes (2.66mm compared to 6mm thick) and the welds are far more substantial on these. What a hugh disappointment the ones from the big box store have been! Besides the major difference in quality, their bracket is more than $25 for just one. These are less than $24 for two! Come springtime, I will be replacing ALL of them. Can't say enough good about these. They are superb and far superior!

### ⭐⭐⭐⭐ Not the sturdiest method
*by C***S on 13 June 2024*

Per the subject line this is not the sturdiest way to attach a post, but it's a simple install, and great if you're trying to anchor the post to concrete that has already been poured (Steps, patio etc.)

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**Shop now:** [https://www.desertcart.hk/products/610040175-2pcs-black-powder-coated-concealed-post-base-for-4x4-post](https://www.desertcart.hk/products/610040175-2pcs-black-powder-coated-concealed-post-base-for-4x4-post)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-06-04*